4.80 AA light from Fast Tech

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Lancman
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Nicely done. I had just about given up tracking down a replacement reflector for this light, never thought about a TIR. Any chance of a beam shot?

keltex78
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Lancman wrote:
Nicely done. I had just about given up tracking down a replacement reflector for this light, never thought about a TIR. Any chance of a beam shot?

I don't have the means for a GOOD beam shot, but this should at least give you an idea of the beam profile:


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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keltex78 wrote:

Lancman wrote:
Nicely done. I had just about given up tracking down a replacement reflector for this light, never thought about a TIR. Any chance of a beam shot?

I don’t have the means for a GOOD beam shot, but this should at least give you an idea of the beam profile:


Nice smooth beam pattern, great mod!
Lancman
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Yes indeed, very nice. I’m thinking one of those lenses will be going on my next order. Thanks.

cajampa
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Great mod, i will order the part to see if i like it better than the stock reflector, do you think the TIR would fit an XP-L?

Can you guys help me out though, i totally failed in opening this light Sad

Am i supposed to screw out the driver to get access to the pill or what?
The driver looks glued in, or is the head able to screw open in to parts?
I can’t see any seam that would indicate that.

keltex78
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The head unscrews from the battery tube and also unscrews in half for access to the emitter. The driver is a simple press-in IIRC. The optic fits an XM-L so an XP-L should fit fine too. You'll probably want to use the XP centering ring instead though.


Keepin’ the “B” in BLF

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

cajampa
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Thanks,

Did you buy yours from the ebay seller or fasttech? mine is from ebay.

I think mine is glued together Sad it really don’t want to open i can’t even pry the driver out, it already have scrapes all over because it just don’t want to budge.

I guess i will have test some intense heat on to see if it will loosen up the thread lock gunk, i hadn’t planned to use the driver or led anyway.

Nice that the optic will fit the XP-L (sorry i missed that you used a XM-L of course it will fit then Smile it was the fasttech description that threw me of) & good point about getting the correct XP centering ring.
I don’t have any extra o rings, where did you get yours that was slightly thicker O-Ring & a better fit.

Did you use a copper DTP mcpcb on this, i wonder if the optic+thicker o-ring is including the thicker mcpcb like a noctigon or sinkpad?

cajampa
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Applying intense heat worked Smile but i melted the reflector+led because i got it to hot Sad to bad, now i need that TIR & fasttech aren’t shipping because Chinese new year.

I managed to poked out the driver from led side, it probably was just pressfitted in but i just couldn’t get it moving from the battery side.
EDIT
I just realized that it was probably the wires from the star that held it in place, they where so short it would have been impossible to get it out of the head anyway.

I haven’t even any 14500 batteries anyway so i need to get those first before i can even do anything fun with this Smile but this is a really nice host now that get to look at all the part separately.

One potential problem i see could be there extremely tiny space for the driver….. i am not sure it is possible to fit a nice FET driver in there, i will have to make some closer measurement for that though.

WarHawk-AVG
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pics please

cajampa
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Is there something specific you want to see?

I can’t show the reflector and led melted together, because i was disappointed that i did let them get too hot (and they smelled really bad, i did get a slight headache for a couple of hours by it), so i just flushed them as soon as they where cool enough to remove to get them out of my sight Sad i used a hot air gun, unfortunately for a bit to long. I stopped as soon as the temp was 150 degrees Celsius on the IR temp meter, that was obviously more than enough so next time i will test lower.
Anyway it is good to know it is this easy to get some thread locks to crumble Smile i have some Hugsby’s i may want open soon Wink

I will try to get some pictures taken later in the evening.

EDIT sorry, i can’t upload any pictures for a while, my phone’s Internet/MMS function seems to be down at the moment.

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keltex78 wrote:

Lancman wrote:
Nicely done. I had just about given up tracking down a replacement reflector for this light, never thought about a TIR. Any chance of a beam shot?

I don’t have the means for a GOOD beam shot, but this should at least give you an idea of the beam profile:

Will this TIR w/spacer work with the stock light? If so, how do you think it would change the beam?

Survival & Emergency Preparedness http://sepboard.us

keltex78
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@deputydave: I don't have a light with the stock emitter on hand at this time to check. I assume it would be similar, but much dimmer.

@cajampa: That's interesting that yours is glued. Mine is from FastTech, and I don't think it was glued, but I have the two eBay lights that should be here soon. I'm curious if those will be  glued. I'm not sure what the hold-up is; I ordered two lights at the same time from different sellers. The first was shipped without tracking, and I received it a week ago. The second (these two lights) was processed through the Chicago ISC on Feb. 08, then are listed as having arrived at the Chicago USPS facility on Feb. 11. There have been no further updates. I'm hoping they will show up soon.


Keepin’ the “B” in BLF

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

Deputydave
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Thank you sir. In regards to the Ebay version and shipping I experienced the same delay through Chicago, in fact it went from Chicago to Detroit before heading finally to Florida which I thought was odd. Tracking indicates that they’ll be delivered today so that would be a total of 18 days.

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cajampa
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@keltex78,
Could you answer these? thanks
“I don’t have any extra thick o rings, where did you get yours that was slightly thicker O-Ring & a better fit.

Did you use a copper DTP mcpcb on this, i wonder if the optic+thicker o-ring is including the thicker mcpcb like a noctigon or sinkpad with your XM-L2?”

keltex78
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cajampa wrote:
@keltex78, Could you answer these? thanks "I don’t have any extra thick o rings, where did you get yours that was slightly thicker O-Ring & a better fit. Did you use a copper DTP mcpcb on this, i wonder if the optic+thicker o-ring is including the thicker mcpcb like a noctigon or sinkpad with your XM-L2?"

The O-ring I used was a spare from my kit... I have a lot of different sized O-Rings that I've purchased and that have been removed from other lights. I just looked through and found one that worked. It's not an unusually thick one, it's just a standard GITD O-Ring like you would use on a P60 host or anything else. It's just a bit thicker than the thin ring that was already on this host. I trimmed it down to fit myself.

I did not use a DTP copper board, just the thin aluminum board that my emitter came with. If you have a thicker PCB, that might make up the difference. Although, I did flatten and polish the shelf the PCB rests on for improved thermal transfer, and that would have lowered my emitter slightly, yours may not need the thicker O-ring.


Keepin’ the “B” in BLF

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

cajampa
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Yeah Smile thanks for some really good info keltex78.

Deputydave
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Okay, I did in fact receive these lights in the mail today. Put an Eneloop AA in each to test them and they seem to work fine. The star isn’t really seated inside the head, the wires just kinda hold it in and the reflector holds it down in place. I compared it next to the Acebeam L10 (both using an Eneloop AA) and they seem fairly comparable. I haven’t tried a 14500 yet. I lubed all the threads. Probably well worth the $2.99 each. Time will tell for sure of course but they seem to be a pretty decent little light.

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Streamer
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I also received a pair of these lights today from Ebay vendor linked above.  

The threads on both were so sloppy loose that they caused a ridiculous amount of misfires and mode skips. Frown  I wrapped a single layer of metalized/foil tape around the threads of each and now they both function as they should. Laughing 

With this simple repair, they are now great for the price.

Deputydave
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Is that the same/similar to duct tape?

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Trying it now with one of the purple GTL (eBay) 14500 batteries. It is brighter but does’t seem to be head-n-shoulders brighter. Been on for maybe 5 minutes now and it’s fairly warm but I can still hold it without issue.

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Deputydave wrote:
Is that the same/similar to duct tape?

It's the shiny silver metal tape used in HVAC duct work...bonds to metal

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Ah, thank you. I’ll need to look into that.

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keltex78
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The pair I ordered from the eBay vendor arrived yesterday as well...

Like cajampa mentioned above, the head on both of these appears to be glued to some extent. I'll be working on getting those broken apart for modding soon. I have a small strap wrench that should help... a crescent wrench or vice might help with retaing the hex side of the head without damaging if you tape the jaws...


Keepin’ the “B” in BLF

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

Martini
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I think I might have to buy one or two. I’ve been thinking about replacing the Fenix LD01 on my key ring because I dislike AAA cells.

scdaf wrote:
It’s important to have your restraints within walking distance, lest someone needs restraining. Wink
cajampa
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Deputydave wrote:
Trying it now with one of the purple GTL (eBay) 14500 batteries. It is brighter but does’t seem to be head-n-shoulders brighter. Been on for maybe 5 minutes now and it’s fairly warm but I can still hold it without issue.

If you change the bottom supposedly steel spring to a better one with lower resistance like a carobronze or even better beryllium copper spring, it will get brighter.

And the strongest 14500 battery i know of is the Windyfire IMR14500 10A, that would also improve output.
Checkout HKJ ‘s test

keltex78
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Comparing side-by-side, it's apparent that the lights from the eBay seller are not exactly the same. The light from the ebay seller is slightly longer, by about 1/8" (3mm). The anodization is a bit different, but they otherwise appear to be the same.


Keepin’ the “B” in BLF

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

cajampa
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Thats interesting,
Is the front part that holds the lens the same shape? i ask because in your picture of your modded fasttech one, i suspected that my ebay one was slightly different.

Deputydave
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cajampa wrote:
Deputydave wrote:
Trying it now with one of the purple GTL (eBay) 14500 batteries. It is brighter but does’t seem to be head-n-shoulders brighter. Been on for maybe 5 minutes now and it’s fairly warm but I can still hold it without issue.

If you change the bottom supposedly steel spring to a better one with lower resistance like a carobronze or even better beryllium copper spring, it will get brighter.

And the strongest 14500 battery i know of is the Windyfire IMR14500 10A, that would also improve output.
Checkout HKJ ‘s test

Thanks for the suggestions. The GTL 1600mAh pretty much sucks. I’m getting about 10-12 minutes out of a fully charged battery in these lights on high. The only other 14500’s I have on hand at the moment are the TF flame 900mAh but haven’t tried them yet in this light. In the SK68 the TF got 1 hour 20 minutes and stayed bright the whole time till it shut off. In the same SK68 the GTL lasted only 50 minutes and quickly got dim.

I’ll have to toss a TF in and see what kind of run times I get on high and low.

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keltex78
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cajampa wrote:
Thats interesting, Is the front part that holds the lens the same shape? i ask because in your picture of your modded fasttech one, i suspected that my ebay one was slightly different.

I don't have the means to post a comparison photo at this time, but head-on, they are both the same. I think the difference you may be seeing is just perception due to the TIR optic.


Keepin’ the “B” in BLF

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

cajampa
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Ok good to know, i agree that it is probably the TIR & also that slight fish eye effect you can get in closeups in photos.

I wonder if you can figure out where we got the 3mm extra, maybe we got a thicker shelf Big Smile but i wouldn’t bet on it is probably something useless like a longer tube.
But a deeper driver area would be nice also.

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