TLF/BLF/Lumintop FW3A review (18650, 3x XP-L HI cool white)

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JasonWW
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monkeyman77 wrote:
Anyone got a link to the runtimes in stepped mode?

It will vary based on the battery and leds. I think this is all we have.
ToyKeeper wrote:
d_t_a wrote:
Is there some rough computation guide for lumens to runtime (let’s assume the battery is a 3000mAh 18650 like an LG HG2 or INR18650-30Q)?

I’ve been meaning to make a table for that… and there’s no time like the present.

This is only an estimate, generated by plugging the firmware’s PWM values into a script with some guesses about the power draw and lumen output… but it should give people a rough idea what to expect.

All 150 ramp levels with a 3000 mAh cell:

  1:    0.2 lm,     2 mA, 74 days
  2:    0.2 lm,     2 mA, 74 days
  3:    0.8 lm,     3 mA, 41 days
  4:    0.8 lm,     3 mA, 41 days
  5:    1.5 lm,     4 mA, 28 days
  6:    1.5 lm,     4 mA, 28 days
  7:    2.1 lm,     7 mA, 17 days
  8:    2.1 lm,     7 mA, 17 days
  9:    2.7 lm,     9 mA, 14 days
 10:    3.3 lm,    10 mA, 12 days
 11:    4.0 lm,    11 mA, 11 days
 12:    4.6 lm,    13 mA, 10 days
 13:    5.2 lm,    14 mA, 9 days
 14:    5.9 lm,    16 mA, 8 days
 15:    7.1 lm,    18 mA, 7 days
 16:    7.7 lm,    22 mA, 6 days
 17:    8.4 lm,    24 mA, 5 days
 18:    9.0 lm,    25 mA, 5 days
 19:   10.3 lm,    28 mA, 5 days
 20:   11.5 lm,    30 mA, 4 days
 21:   12.2 lm,    32 mA, 94 hours
 22:   13.4 lm,    35 mA, 87 hours
 23:   14.7 lm,    37 mA, 80 hours
 24:   15.9 lm,    40 mA, 75 hours
 25:   17.8 lm,    44 mA, 68 hours
 26:   19.1 lm,    47 mA, 64 hours
 27:   21.0 lm,    51 mA, 59 hours
 28:   22.2 lm,    54 mA, 56 hours
 29:   24.1 lm,    58 mA, 52 hours
 30:   26.0 lm,    62 mA, 48 hours
 31:   27.9 lm,    66 mA, 45 hours
 32:   29.8 lm,    70 mA, 43 hours
 33:   31.7 lm,    74 mA, 40 hours
 34:   34.2 lm,    80 mA, 38 hours
 35:   36.7 lm,    85 mA, 35 hours
 36:   38.6 lm,    90 mA, 33 hours
 37:   41.1 lm,    95 mA, 32 hours
 38:   43.6 lm,   101 mA, 30 hours
 39:   46.8 lm,   107 mA, 28 hours
 40:   49.3 lm,   113 mA, 27 hours
 41:   52.4 lm,   120 mA, 25 hours
 42:   55.6 lm,   127 mA, 24 hours
 43:   58.1 lm,   132 mA, 23 hours
 44:   61.9 lm,   140 mA, 21 hours
 45:   65.0 lm,   147 mA, 20 hours
 46:   68.8 lm,   156 mA, 19 hours
 47:   71.9 lm,   162 mA, 18 hours
 48:   75.7 lm,   171 mA, 18 hours
 49:   79.5 lm,   179 mA, 17 hours
 50:   83.9 lm,   189 mA, 16 hours
 51:   87.6 lm,   197 mA, 15 hours
 52:   92.1 lm,   206 mA, 15 hours
 53:   96.5 lm,   216 mA, 14 hours
 54:  100.9 lm,   226 mA, 13 hours
 55:  105.3 lm,   235 mA, 13 hours
 56:  110.3 lm,   246 mA, 12 hours
 57:  115.3 lm,   257 mA, 12 hours
 58:  120.4 lm,   268 mA, 11 hours
 59:  125.4 lm,   279 mA, 11 hours
 60:  131.1 lm,   292 mA, 10 hours
 61:  136.1 lm,   303 mA, 10 hours
 62:  141.8 lm,   315 mA, 10 hours
 63:  148.0 lm,   329 mA, 9 hours
 64:  153.7 lm,   341 mA, 9 hours
 65:  160.0 lm,   355 mA, 8 hours
 66:  164.7 lm,   370 mA, 8 hours
 67:  172.1 lm,   389 mA, 8 hours
 68:  179.5 lm,   408 mA, 7 hours
 69:  186.9 lm,   427 mA, 7 hours
 70:  194.3 lm,   447 mA, 7 hours
 71:  205.4 lm,   476 mA, 6 hours
 72:  212.8 lm,   495 mA, 6 hours
 73:  220.1 lm,   514 mA, 6 hours
 74:  227.5 lm,   533 mA, 6 hours
 75:  238.6 lm,   562 mA, 5 hours
 76:  246.0 lm,   581 mA, 5 hours
 77:  253.4 lm,   596 mA, 5 hours
 78:  264.5 lm,   625 mA, 5 hours
 79:  271.9 lm,   644 mA, 5 hours
 80:  283.0 lm,   673 mA, 4 hours
 81:  294.1 lm,   702 mA, 4 hours
 82:  301.5 lm,   721 mA, 4 hours
 83:  312.6 lm,   750 mA, 4 hours
 84:  323.7 lm,   779 mA, 231 minutes
 85:  334.8 lm,   807 mA, 223 minutes
 86:  345.8 lm,   836 mA, 215 minutes
 87:  356.9 lm,   865 mA, 208 minutes
 88:  368.0 lm,   894 mA, 201 minutes
 89:  379.1 lm,   923 mA, 195 minutes
 90:  393.9 lm,   961 mA, 187 minutes
 91:  405.0 lm,   990 mA, 182 minutes
 92:  416.1 lm,  1019 mA, 177 minutes
 93:  430.9 lm,  1058 mA, 170 minutes
 94:  442.0 lm,  1087 mA, 166 minutes
 95:  456.7 lm,  1125 mA, 160 minutes
 96:  471.5 lm,  1164 mA, 155 minutes
 97:  482.6 lm,  1192 mA, 151 minutes
 98:  497.4 lm,  1231 mA, 146 minutes
 99:  512.2 lm,  1269 mA, 142 minutes
100:  527.0 lm,  1308 mA, 138 minutes
101:  541.8 lm,  1346 mA, 134 minutes
102:  556.6 lm,  1385 mA, 130 minutes
103:  571.4 lm,  1423 mA, 126 minutes
104:  586.1 lm,  1462 mA, 123 minutes
105:  604.6 lm,  1510 mA, 119 minutes
106:  619.4 lm,  1549 mA, 116 minutes
107:  637.9 lm,  1597 mA, 113 minutes
108:  652.7 lm,  1635 mA, 110 minutes
109:  671.2 lm,  1683 mA, 107 minutes
110:  686.0 lm,  1722 mA, 105 minutes
111:  704.4 lm,  1770 mA, 102 minutes
112:  722.9 lm,  1818 mA, 99 minutes
113:  741.4 lm,  1866 mA, 96 minutes
114:  759.9 lm,  1914 mA, 94 minutes
115:  778.4 lm,  1963 mA, 92 minutes
116:  796.9 lm,  2011 mA, 90 minutes
117:  819.0 lm,  2068 mA, 87 minutes
118:  837.5 lm,  2117 mA, 85 minutes
119:  856.0 lm,  2165 mA, 83 minutes
120:  878.2 lm,  2222 mA, 81 minutes
121:  900.4 lm,  2280 mA, 79 minutes
122:  918.9 lm,  2328 mA, 77 minutes
123:  941.0 lm,  2386 mA, 75 minutes
124:  963.2 lm,  2444 mA, 74 minutes
125:  985.4 lm,  2502 mA, 72 minutes
126: 1007.6 lm,  2559 mA, 70 minutes
127: 1029.8 lm,  2617 mA, 69 minutes
128: 1055.6 lm,  2684 mA, 67 minutes
129: 1077.8 lm,  2742 mA, 66 minutes
130: 1100.0 lm,  2800 mA, 64 minutes
131: 1157.9 lm,  3053 mA, 59 minutes
132: 1239.9 lm,  3451 mA, 52 minutes
133: 1329.4 lm,  3886 mA, 46 minutes
134: 1418.9 lm,  4320 mA, 42 minutes
135: 1508.4 lm,  4755 mA, 38 minutes
136: 1597.9 lm,  5190 mA, 35 minutes
137: 1687.4 lm,  5625 mA, 32 minutes
138: 1776.9 lm,  6059 mA, 30 minutes
139: 1873.9 lm,  6530 mA, 28 minutes
140: 1970.8 lm,  7001 mA, 26 minutes
141: 2067.8 lm,  7472 mA, 24 minutes
142: 2164.7 lm,  7943 mA, 23 minutes
143: 2269.1 lm,  8450 mA, 21 minutes
144: 2366.1 lm,  8921 mA, 20 minutes
145: 2470.5 lm,  9428 mA, 19 minutes
146: 2574.9 lm,  9935 mA, 18 minutes
147: 2679.3 lm, 10442 mA, 17 minutes
148: 2783.7 lm, 10949 mA, 16 minutes
149: 2888.1 lm, 11457 mA, 16 minutes
150: 3000.0 lm, 12000 mA, 15 minutes

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Chinaheart
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What is the rechargeable battery used in this test or any recommended rechargeable baterries…Thank You

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Chinaheart wrote:
What is the rechargeable battery used in this test or any recommended rechargeable baterries…Thank You

Most people have been using the Samsung 30Q. I’ve been using 18650s recovered from an old laptop battery, they are only 1800mAh but I’ve got 8 of them lol. I’ll get some better ones when my FW3T comes in.

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Chinaheart wrote:
What is the rechargeable battery used in this test or any recommended rechargeable batteries…Thank You

It was a high drain 3,000mah like a 30Q.

There are a lot of battery choices as long as it it not button top and no protection circuit. These add length and the max length that fits is about 66mm.

Here are some top cells in 3000mah to 3500mah:
Samsung 30Q or 35E.
LG HG2 or MJ1
Panasonic NCR18650GA
Sony VTC6

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Hi BOO5TED

You have a lot of 1800mAh and never run out of stocks,,,, Thank you for the info,,,,,

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Chinaheart wrote:
H BOO5TED

You have a lot of 1800mAh and never run out of stocks,,,, Thank you for the info,,,,,

No problem, many cordless power tools have 18650s in the battery packs also.

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JasonWW wrote:
Chinaheart wrote:
What is the rechargeable battery used in this test or any recommended rechargeable batteries…Thank You

It was a high drain 3,000mah like a 30Q.

There are a lot of battery choices as long as it it not button top and no protection circuit. These add length and the max length that fits is about 66mm.

Here are some top cells in 3000mah to 3500mah:
Samsung 30Q or 35E.
LG HG2 or MJ1
Panasonic NCR18650GA
Sony VTC6

Thank you very much…. JasonWW

FoxAdriano
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Hey, do you know if Lumintop FW3A can use the 18650 protected batteries (with the same length)? I need a precise info please because I alredy have four 18650 protected batteries with the same length as those used by Lumintop FW3A. THANKS

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FoxAdriano wrote:
Hey, do you know if Lumintop FW3A can use the 18650 protected batteries (with the same length)? I need a precise info please because I alredy have four 18650 protected batteries with the same length as those used by Lumintop FW3A. THANKS

Max battery length is 66mm, if you can find a protected cell that length or shorter I don’t see why it wouldn’t work. That being said, I’ve never seen a protected 18650 even close to 66mm.

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BOO5TED wrote:
FoxAdriano wrote:
Hey, do you know if Lumintop FW3A can use the 18650 protected batteries (with the same length)? I need a precise info please because I alredy have four 18650 protected batteries with the same length as those used by Lumintop FW3A. THANKS

Max battery length is 66mm, if you can find a protected cell that length or shorter I don’t see why it wouldn’t work. That being said, I’ve never seen a protected 18650 even close to 66mm.


Plus you’d need the protection circuit to handle at least 10 amps or so. Anything less would probably trip the circuit. The light would turn off if going to Turbo. That would be a pain in the rear.

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mikekoz
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I got one of these a few weeks ago, and I really want to like it, but it has a few things I cannot get past. First of all, the switch is a bit too easy to trip, and even though I see there is a mod to fix it, I am still not sure it would work for me. The second and main issue I have with it the heat this things pours out of the front! Even at 760 lumens before I go to turbo, the light warms up real quickly and it will burn skin and anything else that gets close to the head. I do not own another light that does this,, even ones that put out 1000 plus lumens. There are a few ways to lock the light out, but one can always forget to do so. I am afraid it will start a fire. It seems to me this light is trying to put out too much lumens than it was designed to do. Something this bright should have a better heat sink at the head, and be made of thicker steel. The EDC18 may be this light, and may be something I will try if I see a good deal on it. I would like to see this FW3A format in a single AA design. I think it would be better suited for something like this, instead of trying to be a miniature spotlight. I love the way the light looks! Fortunately, Amazon has given me a generous amount of time to return the light, so I have a while to play with it. It I see the EDC18 price go down, I may swap it for that!

Cranston B. Snord

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mikekoz wrote:
I got one of these a few weeks ago, and I really want to like it, but it has a few things I cannot get past. First of all, the switch is a bit too easy to trip, and even though I see there is a mod to fix it, I am still not sure it would work for me. The second and main issue I have with it the heat this things pours out of the front! Even at 760 lumens before I go to turbo, the light warms up real quickly and it will burn skin and anything else that gets close to the head. I do not own another light that does this,, even ones that put out 1000 plus lumens. There are a few ways to lock the light out, but one can always forget to do so. I am afraid it will start a fire. It seems to me this light is trying to put out too much lumens than it was designed to do. Something this bright should have a better heat sink at the head, and be made of thicker steel. The EDC18 may be this light, and may be something I will try if I see a good deal on it. I would like to see this FW3A format in a single AA design. I think it would be better suited for something like this, instead of trying to be a miniature spotlight. I love the way the light looks! Fortunately, Amazon has given me a generous amount of time to return the light, so I have a while to play with it. It I see the EDC18 price go down, I may swap it for that!

You should be able to limit how hot it gets.

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The FW3A gets hotter, quicker than many other lights as it is quite lightweight, and that was by design. It does not have a bunch of aluminum (mass = weight) to pull heat from the front end and then dissipate it. (It’s aluminum, not steel… steel would be worse for heat). I don’t think it was ever meant to run on high levels or turbo for very long.

Like many things, not every device is loved by everyone. I truly love this light. My needs and wants are probably quite different from many other people. I don’t usually need mega-lumens in a light that is my EDC. Before this my EDC was an Olight s15, a light with a max of something like 400 lumens IIRC. I ran it on a 14500 (AA sized lithium cell) that had a capacity of 800 mAh or so. This FW3A lets me use an 18650, 3000 mAh cell for much improved run time and it is only slightly longer andlarger in diameter. I’m repeating myself; I love it. And I realize others have an opinion 180 degrees from mine.
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.
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The EDC18 is a little heavier. Maybe that will trnslate into slightly cooler operation? I don’t know.

One other thing I like about the FW3A is I always know where the switch is; the tail. With the EDC18 you need to rotate it until the side switch is where you want it. Not a big deal, but for a light that will be dropped into a pocket, not clipped, I prefer the FW3A. But that is me.

I would probably like the magnetic tailcap on the EDC18, if it is powerful enough to really hold anywhere placed.

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MtnDon wrote:
The FW3A gets hotter, quicker than many other lights as it is quite lightweight, and that was by design. It does not have a bunch of aluminum (mass = weight) to pull heat from the front end and then dissipate it. (It’s aluminum, not steel… steel would be worse for heat). I don’t think it was ever meant to run on high levels or turbo for very long.

Like many things, not every device is loved by everyone. I truly love this light. My needs and wants are probably quite different from many other people. I don’t usually need mega-lumens in a light that is my EDC. Before this my EDC was an Olight s15, a light with a max of something like 400 lumens IIRC. I ran it on a 14500 (AA sized lithium cell) that had a capacity of 800 mAh or so. This FW3A lets me use an 18650, 3000 mAh cell for much improved run time and it is only slightly longer andlarger in diameter. I’m repeating myself; I love it. And I realize others have an opinion 180 degrees from mine.
.
.
.
The EDC18 is a little heavier. Maybe that will trnslate into slightly cooler operation? I don’t know.

One other thing I like about the FW3A is I always know where the switch is; the tail. With the EDC18 you need to rotate it until the side switch is where you want it. Not a big deal, but for a light that will be dropped into a pocket, not clipped, I prefer the FW3A. But that is me.

I would probably like the magnetic tailcap on the EDC18, if it is powerful enough to really hold anywhere placed.

I agree with a lot of what you say. Sorry, I meant to say Aluminum, not steel! lol Like you, I rarely need more than maybe 500 lumens from a small, EDC light, and that is why I said this lights design is not optimized for 2800 lumens. I think the light is TOO lightweight. In my opinion, making it a bit more robust and a little bit heavier would not only solve the heat problem, but would also not affect its portability. I need to read reviews of the EDC18 and see if it is better in the brighter settings. I also agree the tail switch is much easier to use, but I do not mind side switches. I have a few lights with both!

Cranston B. Snord

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mikekoz wrote:
I need to read reviews of the EDC18 and see if it is better in the brighter settings.

No, not really. There’s only a little bit more mass; nowhere near enough to handle the amount of power it uses. If you want something with a more appropriate power-to-mass ratio, the EDC18 won’t make much difference. It’s basically a FW3A with a side switch instead of tail switch.

About the switch being too easy to press though, I agree. The prototypes had stiffer buttons, but for some reason it was changed right before production started. The prototypes needed about 800g of force to activate, while the production models have mostly been about 300g. Sad

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ToyKeeper wrote:
mikekoz wrote:
I need to read reviews of the EDC18 and see if it is better in the brighter settings.

No, not really. There’s only a little bit more mass; nowhere near enough to handle the amount of power it uses. If you want something with a more appropriate power-to-mass ratio, the EDC18 won’t make much difference. It’s basically a FW3A with a side switch instead of tail switch.

About the switch being too easy to press though, I agree. The prototypes had stiffer buttons, but for some reason it was changed right before production started. The prototypes needed about 800g of force to activate, while the production models have mostly been about 300g. Sad

Thanks Toykeeper. Saves me the trouble of ordering it. I think I am going to try to make the FW3A work for me. I may mod the switch to make it a bit stiffer, then program it to maybe max out at about 400 to 500 lumens when ramping. Is there a way to “lockout” the turbo mode?

Cranston B. Snord

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mikekoz wrote:
program it to maybe max out at about 400 to 500 lumens when ramping. Is there a way to “lockout” the turbo mode?

Removing the FET and some 7135’s would be the permanent hardware method.

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mikekoz wrote:
ToyKeeper wrote:
mikekoz wrote:
I need to read reviews of the EDC18 and see if it is better in the brighter settings.

No, not really. There’s only a little bit more mass; nowhere near enough to handle the amount of power it uses. If you want something with a more appropriate power-to-mass ratio, the EDC18 won’t make much difference. It’s basically a FW3A with a side switch instead of tail switch.

About the switch being too easy to press though, I agree. The prototypes had stiffer buttons, but for some reason it was changed right before production started. The prototypes needed about 800g of force to activate, while the production models have mostly been about 300g. Sad

Thanks Toykeeper. Saves me the trouble of ordering it. I think I am going to try to make the FW3A work for me. I may mod the switch to make it a bit stiffer, then program it to maybe max out at about 400 to 500 lumens when ramping. Is there a way to “lockout” the turbo mode?
Probably a quick fix is just to disable the FET. Just unsolder the R1 resistor. It can still ramp up to 900-1000 lumen, but not higher. Then you could probably set the ramp level to a lower point so it maxes out at 500lm or whatever. A double click would turn off the leds, but the brains will still be active. Just don’t double click, or if you do, ramp back down before turning off the light. No programming involved.

If you want to reflash it with custom code, maybe that’s easier than soldering for you, then you could do that as well. You’d still have to unsolder the led wires to get to the driver, though.

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Thanks everybody! All great info, but unfortunately I am not nearly that good with a soldering iron! Ughh Has anybody used this light in muddle mode? Maybe setting it to ramp from low to 400 lumen would do the trick. I wish I brought the light with me (we are visiting my wife’s parents this week for Christmas), but will play with it this weekend!

Cranston B. Snord

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Muggle works fine for me. Ramps up and down only and the brightest doesn’t make much heat.

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I was just thinking about something regarding this light and flashing it. It does not have a USB interface and to reprogram it, it involves some desoldering. With so many things these days being bluetooth, why not a flashlight interface with a bluetooth connection with an app you install on your phone? We all have our phones on us all the time so it would not be an extra thing to lug around and would make programming, and just setting up the light as we want so much easier. Is this even possible, or has a light already been designed like this and I just missed it?? What do all of you think? Is this a brain storm, or just a slight drizzle?? Cool Big Smile

Cranston B. Snord

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mikekoz wrote:
I was just thinking about something regarding this light and flashing it. It does not have a USB interface and to reprogram it, it involves some desoldering. With so many things these days being bluetooth, why not a flashlight interface with a bluetooth connection with an app you install on your phone? We all have our phones on us all the time so it would not be an extra thing to lug around and would make programming, and just setting up the light as we want so much easier. Is this even possible, or has a light already been designed like this and I just missed it?? What do all of you think? Is this a brain storm, or just a slight drizzle?? Cool Big Smile

Toykeeper actually made special software and this driver was designed with an optical input (pin 7 on the MCU) that accepts flashing the driver from a blinking light source such as a cell phone. Unfortunately it took a long time and was overly complicated, so it was not put in to use.

I’m not aware of any flashlight with a USB interface, only USB charging.

There are older flashlights with a bluetooth interface and an app you control with your phone that let’s you do cool stuff like change the settings, flash to music and remote turn on/off, but it was expensive so people didn’t buy it. The app was not kept up to date either. It doesn’t seem very practical. IDK, maybe future designs could use bluetooth, but it adds so much more complication.

Things today are going the way of the flashing pin array that you access without removing the driver and you can reflash the driver from your phone. Check the Emisar D4v2. The FW3A was designed a couple years ago when flashing pins where not popular.

Toykeeper is the one that’s really on top of flashing interfaces. I only know a little bit.

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mikekoz
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I just put the light in Muggle mode, and it works fine, except you apparently cannot set the ramping mode to anything else other than 5-240 lumens. I was under the impression I could maybe lift the ceiling lumens up a bit, but just read the instructions. It says to click on the switch four times while on to get into the ramp config mode, then hit the switch one time to set the lower level, or two times to set the upper one. So I clicked four times, then two, then 32 times and nothing happened. The other thing I noticed was that even when the light was at the upper level of 240 lumens, it started to slowly dim after it was on about a minute. The light was not even warm. I found another post about this issue and apparently it is a known one, but there is no solution. Am I correct?

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I believe the biggest barrier to Bluetooth in flashlights is the firmware. There exist hw BT solutions for Ardiuno/ATMega, but the BT BLE libraries increase code size by hundreds of K. Apparently the libraries are fairly monolithic (and probably, written assuming 32 bits); by contrast, the ATTiny in flashlight driver has 1-4 K ROM. Build a driver with an Arduino class processor and 8MB ROM, and BT is an easy add on.

More Photons!

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mikekoz wrote:
I just put the light in Muggle mode, and it works fine, except you apparently cannot set the ramping mode to anything else other than 5-240 lumens. I was under the impression I could maybe lift the ceiling lumens up a bit, but just read the instructions. It says to click on the switch four times while on to get into the ramp config mode, then hit the switch one time to set the lower level, or two times to set the upper one. So I clicked four times, then two, then 32 times and nothing happened. The other thing I noticed was that even when the light was at the upper level of 240 lumens, it started to slowly dim after it was on about a minute. The light was not even warm. I found another post about this issue and apparently it is a known one, but there is no solution. Am I correct?

Muggle mode doesnt allow anything but ramping up and down. You have no menu options except to leave the mode.

There is a bug in that mode that activates the thermal stepdown too early. I haven’t looked into it. I think if it ramps down you can just ramp it back up. There is no fix that I’m aware of.

Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights

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carbone
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I got this light and it is not registering button clicks consistently. It can be in any mode, and it will be hard to leave that mode because it won’t take a click (single, double, triple, long hold, four clicks, etc.). It’s not in lockout. It’s not in muggle mode. Or it can be off and just hard to turn on.

I’ve found cranking the head all the way down helps (edit: not cranking hard. I mean just turning it gently all the way… not abusively). And pressing the button extra hard helps. It’s an intermittent problem.

I’ve also opened it (head end only, have never opened the tail end) and wiggled the inner tube liner that has the metal surface that makes contact with the metal in the head unit. I haven’t touched the metal, or the spring, or the ends of my battery. Battery has a full or almost full charge (4.1 volts now). Took care to clean the residue from the taped-on protective battery end cover that came on the battery from the maker. It’s a Samsung 35E, nothing surprising.

Can’t think of what I’ve done wrong here; is this thing just finicky? Or a bad unit maybe? More importantly, any mitigation ideas?

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carbone wrote:
I got this light and it is not registering button clicks consistently. It can be in any mode, and it will be hard to leave that mode because it won’t take a click (single, double, triple, long hold, four clicks, etc.). It’s not in lockout. It’s not in muggle mode. Or it can be off and just hard to turn on.

I’ve found cranking the head all the way down helps (edit: not cranking hard. I mean just turning it gently all the way… not abusively). And pressing the button extra hard helps. It’s an intermittent problem.

I’ve also opened it (head end only, have never opened the tail end) and wiggled the inner tube liner that has the metal surface that makes contact with the metal in the head unit. I haven’t touched the metal, or the spring, or the ends of my battery. Battery has a full or almost full charge (4.1 volts now). Took care to clean the residue from the taped-on protective battery end cover that came on the battery from the maker. It’s a Samsung 35E, nothing surprising.

Can’t think of what I’ve done wrong here; is this thing just finicky? Or a bad unit maybe? More importantly, any mitigation ideas?


Are you running the pocket clip?

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JasonWW
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carbone wrote:
I got this light and it is not registering button clicks consistently. It can be in any mode, and it will be hard to leave that mode because it won’t take a click (single, double, triple, long hold, four clicks, etc.). It’s not in lockout. It’s not in muggle mode. Or it can be off and just hard to turn on.

I’ve found cranking the head all the way down helps (edit: not cranking hard. I mean just turning it gently all the way… not abusively). And pressing the button extra hard helps. It’s an intermittent problem.

I’ve also opened it (head end only, have never opened the tail end) and wiggled the inner tube liner that has the metal surface that makes contact with the metal in the head unit. I haven’t touched the metal, or the spring, or the ends of my battery. Battery has a full or almost full charge (4.1 volts now). Took care to clean the residue from the taped-on protective battery end cover that came on the battery from the maker. It’s a Samsung 35E, nothing surprising.

Can’t think of what I’ve done wrong here; is this thing just finicky? Or a bad unit maybe? More importantly, any mitigation ideas?


Make sure to loosen head, tighten tail firmly, then tighten head firmly.

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hank
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And you can read up on intermittencies in the FW3A Troubleshooting and Useful Information threads.

http://budgetlightforum.com/search?q_as=FW3A%20Troubleshooting

carbone
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Yes it has the pocket clip installed — I guess to remove it I have to remove the tail cap? Not completely unwilling to do that but I understand reassembly may take some doing and there’s a small part that can get lost if I’m not careful? (I will be if I do it). I like the clip but would be willing to remove it if that’s a fix.

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