Lumintop GT4

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Texas_Ace
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Interesting, seems I should get some of those over the 40T if I end up ordering some. Maybe the stimulus checks will be sorted out quickly lol.

SKV89
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Though I did test a fully charged 40T to output noticeably higher in the Fireflies E07 compared to fully charged P42A. I’m sure the P42A will output higher along the rest of the discharge curve per Mooch’s test but I have no way to test that myself. If you want to get batteries to test max output, 40T is more suitable and capacity is about the same as the P42A, maybe just a bit lower. That’s why I prefer 40T, which is also the most common high power cell, and is likely the cell used by manufacturers in their runtime/output ratings.

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Yeah, Samsung has always served me well, might as well stick with them.

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Here is my .2 cents (My views aren’t worth 2 cents yet :), get whatever is cheaper. They are both great cells. I have built a few 3v XHP50 FET driven lights and I cannot tell a difference between 40T and P42. If I had a meter I’m sure I could note higher output with the Samsung. If I used a timer, I’m sure I could see better runtime with the Molicel. I don’t really do either and I’ve never noticed the lights pooping out early with the Samsung or being too dim with the Molicel. The top is raised a bit more on the Molicel. I’m not sure if it would be enough to not need to solder blob them though. They are both really good cells.

Thanks for all your work on this light Texas Ace.

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Superstocker wrote:
Here is my .2 cents (My views aren’t worth 2 cents yet :), get whatever is cheaper. They are both great cells. I have built a few 3v XHP50 FET driven lights and I cannot tell a difference between 40T and P42. If I had a meter I’m sure I could note higher output with the Samsung. If I used a timer, I’m sure I could see better runtime with the Molicel. I don’t really do either and I’ve never noticed the lights pooping out early with the Samsung or being too dim with the Molicel. The top is raised a bit more on the Molicel. I’m not sure if it would be enough to not need to solder blob them though. They are both really good cells.

Thanks for all your work on this light Texas Ace.

They are the same price which is what makes it harder.

Although right now unless we get confirmation that the stimulus is going to come in I can’t justify the purchase of either lol.

SKV89
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Superstocker wrote:
Here is my .2 cents (My views aren’t worth 2 cents yet :), get whatever is cheaper. They are both great cells. I have built a few 3v XHP50 FET driven lights and I cannot tell a difference between 40T and P42. If I had a meter I’m sure I could note higher output with the Samsung. If I used a timer, I’m sure I could see better runtime with the Molicel. I don’t really do either and I’ve never noticed the lights pooping out early with the Samsung or being too dim with the Molicel. The top is raised a bit more on the Molicel. I’m not sure if it would be enough to not need to solder blob them though. They are both really good cells.

Thanks for all your work on this light Texas Ace.

I can’t tell the difference in output with my eyes. It can only be measured. I think P42A is probably the more practical light because it maintains higher current throughout the discharge but the 40T gives you max output, which most flashaholics are after.

Mooch says the P42A beats the 40T but I think it depends on your usage.

The Molicel P26A 18650 on the other hand kicks serious ass and is easily the best high output cell IMO. I measured a good amount higher output with the P26A than the VTC6 and VTC5D in the E07 and still has decent 2,600mah capacity. The VTC6 and VTC5D outputs higher than the 30Q.

Aaron93
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Does anybody know the exact CCT of the NW and CW versions?

Texas_Ace
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Aaron93 wrote:
Does anybody know the exact CCT of the NW and CW versions?

This was asked in the GB thread: http://budgetlightforum.com/node/73828

I sent a message asking for details, I will post there when I find out.

California_Prepper
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What are the best batteries for this?

I know the bundle comes with Sony vtc6 but I don’t know if those are they best or just what were easily obtainable.
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I would say the VTC6 are the best overall cells for it unless there are some new cells I am not aware of.

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Ok. I just bought the light using your code. Thanks TA.

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California_Prepper wrote:
Ok. I just bought the light using your code. Thanks TA.
Thanks! Thumbs Up
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What would be the best USA source to buy the batteries? I didn’t buy the bundle kit because I don’t need the charger and everytime I buy a light with batteries in it, it seems to have difficulties getting here.

Sirstinky
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Lithium ion wholesale. Or Ilumn. I bought from lithium ion wholesale before and they’re good company. Bulk discount. Plan on around $5.50 ea for 8 vtc6. 6 cost me almost $50 after shipping.

California_Prepper
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Thank you!

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Had to order from Neal. Seems everywhere locally is either sold out or asking $10 a battery.

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Check out Matt's review on Youtube. Awesome!!!

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California_Prepper wrote:
What would be the best USA source to buy the batteries?

Good USA battery stores:

illumn.com
liionwholesale.com
mtnelectronics.com
imrbatteries.com

Texas Ace Lumen Tube and JoshK Sphere calibrated with Maukka lights

Click this to go to signature links. I'm still around, just not reading many new threads.

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JasonWW wrote:
California_Prepper wrote:
What would be the best USA source to buy the batteries?

Good USA battery stores:

illumn.com
liionwholesale.com
mtnelectronics.com
imrbatteries.com

Make sure you get the button tops.

In Him (Jesus Christ) was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not.
http://asflashlights.com/ Everyday Carry Flashlights, plus Upgrades for Maglite.

liteupmynite
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 I received my GT4 yesterday from Neilsgadgets. And I also received my order from Matt, who recommended some batteries for it in his review (https://youtu.be/tM9XL4rRw2A). Light is awesome. Can't wait to test it out later.

California_Prepper
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Doesn’t look like mine has been sent out yet

Hardusvd70
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Just got my tracking number.

Hardusvd70

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Just received my BLF GT4. Smile

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Measured at 9.5 meters. 4730 lux which gives 1306 meters of throw with only 4 batteries that draw power.

Hardusvd70

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Hardusvd70 wrote:
Measured at 9.5 meters. 4730 lux which gives 1306 meters of throw.

Not bad, what cells are you using? Are they freshly charged?

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Texas_Ace wrote:
Hardusvd70 wrote:
Measured at 9.5 meters. 4730 lux which gives 1306 meters of throw.

Not bad, what cells are you using? Are they freshly charged?


Fully charged. Tested around 30 seconds. Sony VTC6.

Hardusvd70

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Hardusvd70 wrote:
Texas_Ace wrote:
Hardusvd70 wrote:
Measured at 9.5 meters. 4730 lux which gives 1306 meters of throw.

Not bad, what cells are you using? Are they freshly charged?


Fully charged. Tested around 30 seconds. Sony VTC6.

Ah, the 30 seconds would explain it, I generally test at 5-10 seconds. These style lights generally drop off for the first 30-60 seconds as things heat up and then stabilize the drop off. I am just too lazy to time the tests between all my lights to keep them consistent lol.

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Texas_Ace wrote:
Hardusvd70 wrote:
Texas_Ace wrote:
Hardusvd70 wrote:
Measured at 9.5 meters. 4730 lux which gives 1306 meters of throw.

Not bad, what cells are you using? Are they freshly charged?


Fully charged. Tested around 30 seconds. Sony VTC6.

Ah, the 30 seconds would explain it, I generally test at 5-10 seconds. These style lights generally drop off for the first 30-60 seconds as things heat up and then stabilize the drop off. I am just too lazy to time the tests between all my lights to keep them consistent lol.


And remember 4 batteries did not make contact. I measured it now and the reading was higher this time.

Hardusvd70

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Hardusvd70 wrote:
Texas_Ace wrote:
Hardusvd70 wrote:
Texas_Ace wrote:
Hardusvd70 wrote:
Measured at 9.5 meters. 4730 lux which gives 1306 meters of throw.

Not bad, what cells are you using? Are they freshly charged?


Fully charged. Tested around 30 seconds. Sony VTC6.

Ah, the 30 seconds would explain it, I generally test at 5-10 seconds. These style lights generally drop off for the first 30-60 seconds as things heat up and then stabilize the drop off. I am just too lazy to time the tests between all my lights to keep them consistent lol.


And remember 4 batteries did not make contact. I measured it now and the reading was higher this time.

yeah, that would also add to the number lol.

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Sirstinky wrote:
Lithium ion wholesale. Or Ilumn. I bought from lithium ion wholesale before and they’re good company. Bulk discount. Plan on around $5.50 ea for 8 vtc6. 6 cost me almost $50 after shipping.

Then and I like https://www.18650batterystore.com/default.asp. I buy all my 21700 cells from here, 30T’s are 4.99, 40T 5.99, P42A 5.99.

Doug S.

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