Amazon Deal Alerts & Discussion Thread

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Lightbringer
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Not sure what’s the come-with angle of the RJ02, but I swapped that for a 60° and like it.

Wider (90°, 120°) seem to be a bit ringy. Might just be more critical as far as seating height over the LED, dunno, but I wasn’t crazy about ‘em.

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pennzy
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The emitters in my S2+s are angry blue . I suppose TIRs don’t help ?

Lightbringer
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They’re already all-blue, so not much tint-shift to fix.

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pennzy
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One more ? . Does the driver you linked have any form of LVW ? Doesn’t say it does in specs. I’d like to set an S2+ up for my granddaughter to use.

moderator007
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pennzy wrote:
One more ? . Does the driver you linked have any form of LVW ? Doesn’t say it does in specs. I’d like to set an S2+ up for my granddaughter to use.

No it does not, it would have to have a mcu.
pennzy
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Ok , thanks . I guess this would not be a good choice then.Anyone no of a single mode , low power S2+ driver with LVP.

moderator007
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You could try contacting RMM (Richard) on here or at Mtn.electronics for a custom one mode driver with LVP.
http://www.mtnelectronics.com/index.php?route=product/product&path=67_11...
.
You could also use this https://www.aliexpress.com/item/New-KDLIGHT-7135-V3-17mm-AMC7135-1-Cell-16-Groups-Flashlight-Driver-Board-1-pc/32701071546.html
Solder all 4 bridges to get high mode only. Unsolder as many of the amc7135 regulators as you see fit to reduce the current. Each one you take off reduces the current by 380ma.

pennzy
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Excuse my ignorance , could you please tell me what bridges to solder?

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pennzy wrote:
Excuse my ignorance , could you please tell me what bridges to solder?

In that ali link look at the pictures to the left. On the battery side of the driver you will see 8 tinned pads in groups of 2. Soldering 2 pads together is bridging the connection to change modes in the mcu. The instructions for mode groups and which bridges does what are near the bottom of that linked page.
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Ok , I will look it over . Now I see where hi = bridging all 4 pads . Thanks

Lightbringer
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moderator007 wrote:
pennzy wrote:
One more ? . Does the driver you linked have any form of LVW ? Doesn’t say it does in specs. I’d like to set an S2+ up for my granddaughter to use.
No it does not, it would have to have a mcu.

Anything with a µC would certainly have multimodes, unless reflashed.

The 7135, though, needs a certain minimum voltage to keep working, about 2.7V, so it’s not like DDing an LED and leaving it on in a closet or anything. It will cut out.

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pennzy
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So it does have a form of LVP by default you are saying.I rather use this driver as it is cheap.

Lightbringer
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pennzy wrote:
So it does have a form of LVP by default you are saying.I rather use this driver as it is cheap.

Not precise, as in sensing the input voltage and cutting out when it drops to X, but yeah, 7135s do cut out below a certain voltage.

If anyone’s interested in trying a batch, have at it. With, say, 3 chips, one might cut out at 2.73V, the next at 2.69V, the last at 2.65V. So it’s not one Master Circuit doing it, but it will crap out before killing the cell.

And when you see it getting dim, that’s Clue #1 to stop and recharge.

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pennzy
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Dim happens over a period of time so might not be easy to judge . I have seen step downs that weren’t noticeable if down gradually .

Sprinkles
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I sent an email to UltraTac asking about their A1. They sent me back a coupon code to share for Amazon. Coupon price $11.99. Here’s a link to the page: UltraTac A1 on Amazon Here’s the coupon code: BLFA1OFF
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Sprinkles wrote:
I sent an email to UltraTac asking about their A1. They sent me back a coupon code to share for Amazon. Coupon price $11.99. Here’s a link to the page: UltraTac A1 on Amazon Here’s the coupon code: BLFA1OFF

My second favorite AA light. Thanks Sprinkles. Ordered two more.

"Everywhere I go, there I am"

moderator007
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Sprinkles wrote:
I sent an email to UltraTac asking about their A1. They sent me back a coupon code to share for Amazon. Coupon price $11.99. Here’s a link to the page: UltraTac A1 on Amazon Here’s the coupon code: BLFA1OFF
Just ordered me another, thanks for sharing. Thumbs Up
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Sprinkles wrote:
I sent an email to UltraTac asking about their A1. They sent me back a coupon code to share for Amazon. Coupon price $11.99. Here’s a link to the page: UltraTac A1 on Amazon Here’s the coupon code: BLFA1OFF

Thanks, ordered 3

moderator007
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Lightbringer wrote:
moderator007 wrote:
pennzy wrote:
One more ? . Does the driver you linked have any form of LVW ? Doesn’t say it does in specs. I’d like to set an S2+ up for my granddaughter to use.
No it does not, it would have to have a mcu.

Anything with a µC would certainly have multimodes, unless reflashed.

The 7135, though, needs a certain minimum voltage to keep working, about 2.7V, so it’s not like DDing an LED and leaving it on in a closet or anything. It will cut out.


No need to flash the driver I linked from Ali, the driver has a settable modes with the bridges. All four bridged one mode (high).
.
The amc7135 in the datasheet list the working voltage as minium 2.7v, that doesn’t mean it wont work lower. It just means ADDtek specs all amc7135’s to work correctly at 2.7v. I have the exact driver you linked. I tested it with a DPS5015 and a XML, the light became dim at below 2.5v and kept getting dimer until 2.25v at that point the led was just barely glowing. At 2.5v just guessing, looked like maybe 5 to 10 lumens.
I don’t know where the amc7135 quits working but its definitely lower than 2.25v.
.
Removing the diode and using a jumper supposed to gain a few millivolts back also, I tested mine with the diode on.
Lightbringer
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Rated pretty conservatively, then. Big Smile

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pennzy wrote:
Ok , thanks . I guess this would not be a good choice then.Anyone no of a single mode , low power S2+ driver with LVP.

The new Convoy driver with Biscotti firmware can be set for single-mode operation and has LVP at about 2.8V:

https://www.aliexpress.com/store/product/7135×3-7135×4-7135×6-7135×8...

Or you can buy it as part of a ready-made light:

https://www.aliexpress.com/store/product/desert-tan-S2-flashlight-with-XPL-HI-led-inside-and-ar-coated-glass-biscotti-firmware/330416_32820745681.html

Either way, get the 4×7135 version and set it to single mode (mode group 12) for your family to use; you can always choose a different mode group in future if you want to.

pennzy
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Phlogiston wrote:
pennzy wrote:
Ok , thanks . I guess this would not be a good choice then.Anyone no of a single mode , low power S2+ driver with LVP.

The new Convoy driver with Biscotti firmware can be set for single-mode operation and has LVP at about 2.8V:

https://www.aliexpress.com/store/product/7135×3-7135×4-7135×6-7135×8...

Or you can buy it as part of a ready-made light:

https://www.aliexpress.com/store/product/desert-tan-S2-flashlight-with-XPL-HI-led-inside-and-ar-coated-glass-biscotti-firmware/330416_32820745681.html

Either way, get the 4×7135 version and set it to single mode (mode group 12) for your family to use; you can always choose a different mode group in future if you want to.

I was looking at that driver. Too bad there isn’t a 50% setting in single mode.

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pennzy wrote:

I was looking at that driver. Too bad there isn’t a 50% setting in single mode.

Order the 4 chip version. This will be 50% on high of the 8 chip version.

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

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4 chips = about 400 lumens or so?

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pennzy wrote:
4 chips = about 400 lumens or so?

With a warmer tint emitter, probably so.
With a cooler tint emitter, maybe a bit more.
ActiveAl
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The Thorfire TG06S is scheduled to be in a Lightening Deal on Amazon.com starting at 7:35 PM EDT, 12 Sep 18. A summary of its features is listed below.

 

Manufacturer
Model
LED/Tint
Output in lumins
Runtime (hrs + min)
Dimensions Weight
(grams)
Reflect Comments
Length
(mm)
Diam
(mm)
Thorfire
TG06S
XP-G2
~ 5500 K
  H M L ML
14500: 500 (0+35) 200 (1+15) 50 (3+00) 1 (72+00)
Ni-MH: 150 (0+55) 80 (8+00) 20 (8+00) 0.5 (120+00)
Double tap to activate strobe.
Steps down from High to Med after 3 min.
96 20 37 SMO No mode memory. Always starts in High.
Alum alloy body. IPX-8.
O-ring behind the lens glows in the dark.
No noticeable PWM (to me).


This is the flashlight that I carry every day in a belt pouch, and use as an inspection light. I like it because it has no mode memory and always comes up in High.


 EDIT: There was a 20% off coupon for this flashlight when I first saw this listing - now it is gone. The current price is $16.80. The price has to go down to around $10 for this to  be a good deal IMHO. Last June I purchased one for $9.79 during a Lightening Deal that gave 20% off plus a 20% coupon. 

 

Please note that if this flashlight is left off ≥ 3, sec then it comes up in High. Otherwise, if left off for < 3 sec, it comes on in the next mode. Therefore, if you click this flashlight On and Off rapidly, it will appear that it has Next Mode memory. 


 EDIT2: Deal price is $12.79 (24% off).  FWIW, the Elfeland Outdoor Lighting Store on AliExpress is offering the Thorfire TG06S for $10.28 for a few more hours. Delivery time to the US is 12 - 20 days via ePacket shipping.

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ActiveAl wrote:
Therefore, if you click this flashlight On and Off rapidly, it will appear that it has Next Mode memory. 
It’s basically just cycling through the modes (H>M>L>Moon), isn’t it?
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Pete7874 wrote:
ActiveAl wrote:
Therefore, if you click this flashlight On and Off rapidly, it will appear that it has Next Mode memory. 
It's basically just cycling through the modes (H>M>L>Moon), isn't it?

Yes, you can cycle through the modes with either a half- or full-click. 

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H, M, L and ML
.
Not my cup of tea. I will not buy anymore thorfire lights for this reason. I prefer ML, L, M and H.
I hate to be blinded upon first click of a EDC flashlight.

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moderator007 wrote:
H, M, L and ML . Not my cup of tea. I will not buy anymore thorfire lights for this reason. I prefer ML, L, M and H. I hate to be blinded upon first click of a EDC flashlight.

But the High-mode-first may work to your advantage outdoors, or when you want to see something in a light-absorbing-environment (like in a large room or around machinery) quickly. This is the only light in my current AA/14500 collection that always comes up in High. For this reason, it is one of my favorites.

EDIT: My Sofirn SF10 also comes up in High, but I don't use it much because of the noticeable PWM. 

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