4.80 AA light from Fast Tech

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jerm03
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4.80 AA light from Fast Tech

Anyone have one of these? It looks good, especially for the price.
http://www.fasttech.com/products/1601/10009202/1815003-u-520-1-cree-xp-e...
Thanks,
Jerry

viperbart
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I think I see a very ringy reflector on one of the pics…
Could have a really ugly beam.

phsinvent
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Its a nice light for the price. Good output. Takes aa or 14500. Will not take protected 14500. Its a rather compact light compared to sk68. Only downside is plastic lense and reflector.

WarHawk-AVG
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I have two, work very well…currently on my keyring as we speak

http://www.fasttech.com/reviews/1815003/150830

The others are also spot on

Serville
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viperbart wrote:
I think I see a very ringy reflector on one of the pics… Could have a really ugly beam.

Definitely not ringy. I have 6. It works very well.
Very nice light for the price. Brightness about 100 lms with AA. 225-250 lms with 14500.
I thought 14500 would fry the driver easily, but not in my test.
I’ve been playing rough upto 20 min (with Sanyo 14500, like 20-25x), amazed that it still endures very well. I used thermal paste on the star.
Somehow I expected the test unit fail with 14500 after rigorous tests, but so far so good.
Basically, I left it on table for 20 min untouched with no additional air circulation (like a fan), measuring the head with IR temperature gun.
15 min – 60C
20 min – 65C
Room temp: 32 C
If I hold it in my hand for 15 min, I can feel the heat, but still able to hold it without a problem. It feels very warm with my hand absorbing the heat.
Plastic reflector, but glass lens

Runtime:
- Alkaline AA – 55 min
- Sanyo 14500 840mah – 50 min
- Fake Trustfire Flame 900mah – 20 min :bigsmile:
- Sony NIMH 2000/Eneloop 2000 – 55 min
- Eneloop Pro/XX 2550 – 90 min

bibihang
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Looks good. With that price I won’t worry too much about it being scratched and abused. Does anyone has a photo of holding it in hand?

Manx
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Quote:
Looks good. With that price I won’t worry too much about it being scratched and abused. Does anyone has a photo of holding it in hand?

That’s a good idea to understand very well the dimension, thank you.

www.youtube.com/channel/UCeDhMPm0L1yvr3LpygDPgMw my flashlights/knives/gear video reviews
www.absoluteblack.net my dark comics

keltex78
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I bought one... glass lens, plastic reflector.

No pics, but:

It will take a 17mm driver.

It will take any LED on a 16mm PCB.

On mine, the driver sits a bit deep, so I had to add a ring of solder around the negative contact ring to make contact when the battery tube is tightened.

Protected cells fit.

Good thermal path as the LED doesn't reside in a pill, but a flat shelf that is a piece of the light.

The pill shelf is flat, so you would need a good adhesive to center and retain the emitter. Although, there is a divot in the middle of the shelf, directly under where the LED PCB will sit. I used a file, followed by lapping the shelf smooth to machine out the divot and make a mirror-polished flat surface for the PCB to sit on.

Reflector is an oddball size, I haven't been successful in locating a good aftermarket reflector or TIR optic.

I was able to use a rotary tool to slowly sand the reflector opening to fit a standard XML centering insulator. The emitter sits deep in the reflector, but is well centered, and at a good optical depth (die surface is completely visible around the full surface of the reflector).

Mine now has an XM-L2 emitter with the 2-mode DD-High driver from FastTech, running 14500s. With fresh cells it is very bright, but extremely floody. This light also gets very hot very quickly. With good (better than my two-year-old Trustfire) cells, I can see this light getting so hot that you would be unable to turn it off without getting burned (danger of a twisty).

It's a cheap host. During my mod attempts, I accidentally and destructively dedomed three XM-L2 emitters trying to get the reflector centered, before I got it sanded down to the right size. I kept working on it though, and finally got a working light. I would prefer it didn't have the keychain loop. Compact, ultra-budget, single-AA mod host, one of the only I've found to date.


Keepin’ the “B” in BLF

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

bibihang
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Thank you very much for the informative sharing man. Now I am seriously considering to buy one of these. Since we have XP-L nowadays I think I don’t need to force an XM-L2 in there, or maybe I will put an XP-G2 for a little throw. Smile

keltex78
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I'm sure an XP-L would have been best, but I didn't have one of those on hand.

Now I want to order a new light and an XP-L to mod out... see if it works out better than the XM-L...


Keepin’ the “B” in BLF

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

phsinvent
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For those that are on the fence about the Fasttech price. How about $3.74 ? I’ve ordered quite a few from buyincoins and they took about 12 days to reach the US.

http://www.buyincoins.com/item/53459.html#.VGZMWjTF_fh

jerm03
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Thanks, All,
I decided to order 3 and give and them a try. If they are OK I’ll order more for gifts. I have been gifting the Tank 009 TK701, but they have gone up to around $9-10.
Jerry

jerm03
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I received these lights yesterday, and for the price I like them. The threads are not so fine that they would strip easily, and the front easily screws on. I got 3 hours run time on high with Tenergy Premium batteries, and with Chinese Alkalines from Harbor Freight got 6 hours on low mode.
It is smaller than the Sipik 68 although it does not zoom. It has two modes and strobe, which I could do without. The beam is not ringy and has a nice center hotspot.
https://www.fasttech.com/products/1815003

I like them and believe they will be reasonably rugged so that I will gift them. I prefer AAA lights, but these are not bad.

Jerry

vortexpt
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Does anyone know if the ones from buyincoins are also 3 modes?
I know in the description it says 1 mode, but wrong descriptions are a normal thing.

Thanks.

vortexpt
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Answering to my question, in case someone was wondering the same.

The ones in BIC are 3 modes with next mode memory ( :Sp )
Pretty small, shorter than a MXDL 3w (AAA) that I have. (only the body, not counting with the keyring clip, obviously)
If it had a clip it would be a nearly perfect cheap EDC flashlight (size wise), but the keyring clip isn’t bad either, just a matter of personal preference.

edit
Bought two (actually bought three, but were on two different orders and the last one arrived first, go figure)
One of them is pretty decent, draws ~0.9A on high, ~0.25A on low (on a Ni-MH), just great for a small EDC light.
The other…draws ~0.9A on high and ~0.75A on low, no wonder I didn’t notice much difference between modes.
Dunno, might have been a one in a million problem, or might be a usual lack of quality control.
But hey, it’s a cheap AA twisty, you don’t find them very often.

Disassembled the one that draws 0.75A on low. (the other one works great so I don’t want to mess it up Wink )
No thermal paste under the star.
But has an o-ring between the lens and the reflector (shouldn’t it be between the lens and the head? ), an o-ring on the head (in the middle where it unscrews) and another between the body and the head. overall it’s well equipped with o-rings. :bigsmile:

WarHawk-AVG
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The .9A and .25A seems like a much better spread of Hi to Lo, the .9A to .75A is the High and not so low modes, wish it was lower

They are good little lights

Sirius9
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When I saw the title I thought it’s a 4.80 *A*mps light Smile

 

WarHawk-AVG
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no it’s a $4.80 AA battery light

Sirius9
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I know, disappointing Big Smile

 

Lancman
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Don’t know how reliable the seller is though.

jerm03
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I am going to buy two, and if not good will exercise the eBay money back guarantee. I have 4 of the lights from Fast Tech. Probably will take a couple of months to get the lights.
Jerry

jerm03
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Every thing came through OK. Glad I ordered them.
Jerry

keltex78
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I just ordered two from the same seller; My plans are to swap the driver and add an XP-L emitter to make a pocket flame-thrower.

Ordered yesterday afternoon, already updated as "shipped" with a tracking number...


Keepin’ the “B” in BLF

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

apt323
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I have to stop I cant keep from buying cheap lights lately………….

I have probably ordered 15+ different lights since sometime in December……… the wifey is not going to be happy hopefully I get to the mail a lot more than she does.

jcs0001
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Just ordered one from fasttech. It’s cheap enough that loss isn’t a big concern and I have some lithium primary aa’s that I can use in it rather than risking my rechargeables. Not sure I like the modes or mode memory however so that might mean a driver change eventually.

John.

Streamer
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jerm03 wrote:
Every thing came through OK. Glad I ordered them. Jerry

jerm03, did you order the $2.99 ones off of Ebay?  How do they compare to your others?    Same Q5 led? Just as bright?  Finally, was there any customs issues? They sure harp on it on their Ebay sales page.

jerm03
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Streamer wrote:

jerm03 wrote:
Every thing came through OK. Glad I ordered them. Jerry

jerm03, did you order the $2.99 ones off of Ebay?  How do they compare to your others?    Same Q5 led? Just as bright?  Finally, was there any customs issues? They sure harp on it on their Ebay sales page.

Yes I bought two. I could not tell any difference in the others. There were no customs problems that I am aware of.
Jerry

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Streamer wrote:

jerm03 wrote:
Every thing came through OK. Glad I ordered them. Jerry

jerm03, did you order the $2.99 ones off of Ebay?  How do they compare to your others?    Same Q5 led? Just as bright?  Finally, was there any customs issues? They sure harp on it on their Ebay sales page.

IIRC, this is the seller he used: Ebay

I ordered five of these and they were shipped on 1/31/15. It shipped next day as I ordered on the 30th. Looks like it took about a month for them to arrive for Jerry so I’ll anticipate about the same. He also has a thread on this light specifically, that’s how I found out about the $2.99 deal.
Smile

Edit: Jerry and I were posting at the same time Wink

Survival & Emergency Preparedness http://sepboard.us

Streamer
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Thanks to both of you.  Gonna order a few.

jerm03
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Streamer wrote:

Thanks to both of you.  Gonna order a few.

Here are my results of testing with various batteries. I like the light.
Cree Super Light AA
Lo Tenergy Premium 5hr 30min
Lo Thunder alk 5hr 12min
Lo Everyready alk 5hr 0min
HI Dura ion-co 1hr 39min
Hi EBL 1hr 33min
Lo EBL 5hr 56min

Jerry

keltex78
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Optic replacement mod...

After upgrading driver and the emitter to your choice of XM-L:

Install this TIR: https://www.fasttech.com/products/1108201

...with this isolating disc to center https://www.fasttech.com/products/1581402

...along with a slightly thicker O-Ring to take up the extra space:

=

It turns out to be a perfect fit, and creates a great beam pattern. A decent driver and some high-current 14500s would make this into a crazy-bright pocket light. I installed a Nanjg 101AK; even @ 1.4A using my three-year-old TrustFire cells is very impressive.

Also, how about that annoying keychain nub on the base? No problem there... A dremel, a file, and wrapping up with some rubbing compound clears that up. Now it tailstands! Add a good thick layer of GITD nail polish and you get this:


Keepin’ the “B” in BLF

Don wrote:
It sounds like the XM LEDs won’t really be suitable for flashlight use. Pity…

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