If I think I will use them again I put them in a small ziplockbag with a label on it, but most end up loose in a boring-parts-box, usually to never be used again. But occasionally I take one out for a build and nowadays I can check tint/CRI before using it.
Not my mod but attention worthy:
Vinh has upped the power of a LEP flashlight, increasing output by about 60%. He may be the first to do so and speak up publicly.
Click
He he is running one of Richards driver’s in it….Regulated VN4
Shipped.
One is a mountain electronics 10mm FET I never got around to using. One is some performer made by a blf member I cant remember. The driver was a big deal at the time I purchased it so maybe chops can post a picture of it and someone will recognize it. The package it came in came from Croatia.
Sounds like a LED4Power driver then
Yep that is it. Looks like I have an old version but it should be a 12 amp capable driver. For sale : LD-2 and LD-M2 driver (Updated) All my comments when ordering are here.
Wow, looks like chops got a VERY nice box of “crumbs” then! That’s very generous of you, vob. :partying_face:
I’ve got an entry for what did you break today
Pulled the pad off the FET (likely already stressed from changing the bezel on my FW3A a few times and re-soldering wires)
Any idea if this can be repaired?
Easy, the copper area under the “Q1” is the same thing
You can carefully scrape the solder mask next to fet. You can do it with a tiny screwdriver or even a needle.
Thank you both! Will try this tonight. Might tape down the wire flat since there’s so little space in driver cavity on the sides.
Sorry for the bad night shots but the phone can not deliver better pics.
First controll shot during the day.
Cometa with Original Jaxman Z1 lens and SBT-70 with 12A LED4Power Driver
UF 1504 with Osram Ostar PC-green ( KP CSLNM1 F1) with 6A LED4Power Driver
Very cool builds and pics, Docc!
gotta love that round die aspheric look
I got fooled by a travel clock today.
Bought it new at a local store (Hema) last week.
(Sofirn C01 is for size reference)
It runs on a single AA and has a small 3mm led that lights via a momentary switch on the back, to check the time at night.
It is pretty bright, my planned mod was to add a high value resistor in series with the led and replace the momentary switch with a slide-switch, so the clock can be lighted all night at a non-disturbing brightness. I like that much better.
I was surprised to like the tint of the led, pretty good for a cheap travel clock, so before starting the mod I checked the tint with the spectrometer.
And good it was indeed: 2300K, 96.3CRI, R9=83, duv –0.022. 
This is a holy grail led , where did the Hema source it?
Then I checked the spectrum 
I would love to see some new leds with round die. But for now i am really happy to have my SBT-70 Aspheric on my shelf. Again thanks to DB Custom for making it possible.
Had to mill the underside of the led cover thinner to make space for the SBT-70. The cover barely touches the glass above the led. Took some time to center it but i think now it looks good.
Before the assembly every part was really good cleand and i still have a few dust spots under the lens 
.
I would love to add some shots from this led in moon mode. The blue shining line arround the led looks so cool. But with my phone it is not visible. Maybe i can find someone in my area to take a few nice shots.
My work light died today. So I Frankensteined something together for the time being. Aspheric quad 219b doesn’t look to bad.
Beam shots?
I haven’t been around to know it, so I ask: this is an incan, right?
I’m very interested in seeing the result as well. 
Yes,mit was an oldschool mini-incan bulb. Probably cheaper than a piece of circuitry to boost the voltage of the AA-battery for use with a led.