I have some smaller EDC lights that the drivers have gone south in. I would like a selection of some 14mm or 15mm ones to choose from in order to repair, modify or upgrade some of my lights. The only ones that I know of are the following:
I thought that there would be more input into this thread. Anyway, after looking around a little more I came up with one more driver to add to the list.
Yes, it is sad that vendors don't give many details about the circuit boards that they sell. I think it's sad too that the one circuit board that I like costs $4.25 plus more $$ for shipping. I'm inclined to think that I might as well put the money towards a new light than to fix a questionable old one.
BTW Thanks for the infomation that the last driver I listed will not work with 1aa.
The Sandwich Shop Madmax Lite is a boost driver intended to be used with two AA cells. I know that it'll work down to about 1V. It supplies 350mA at 3V and around half that on a single cell. It's 14mm, too.
The Madmax Plus is the 700mA version of the above driver. It pushes about 350mA at 1.5V.
Neither Sandwich Shop driver is cheap, though, at around $8 each.
Illumination Supply sells two single cell drivers, though the 500mA one is 12mm and the 700mA driver is 17mm. Both are less than $5 each.
I have had the DX driver linked to in the OP on order for months. That one is a no go. I just ordered the FP one. I would really like one for 2AA but it's for a junk light so I will just try this one with a 14500 and spacer. It's cheap enough and I'm sure I will actually receive it from FP.
Yes, that is a BLF SK68 driver. It was designed by BLF members. It is open source hardware. I have built two of them by ordering the boards from OSHPark and stripping Nanjg 105c drivers for the parts. Mountain Electronics has them for sale assembled for $6.something. Naturally, they are more expensive than similar drivers assembled in large numbers in China. Some BLF people, maybe Warhalk or Serial Killer, might have them for sale also. Or someone who is good as building surface mount boards might do you a couple as a favor. I think there is also an FET version of the board, and probably other variations such as off time memory and Zener mod.