Tested. One channel smoked, sorry…. ![]()
- Constant current 3 channel buck driver rated for 12-15V I guess…Bought from Ebay somewhere in 2013
- Designed as 2x5watt low beam and 15watt high beam (in high beam all three COBs turned on) per module
- 3 x 6V unknown super low CRI 6500+ K COB LED. Wired for 2 Lo and 1 Hi beam.
- Each channel outputs 0,87A-0,88A. You can combine all three in parallel to get 2,64A total.
Tried with 3 x XPG 4500K bought from Sedstar (super nice and dirt cheap). Link: Sedstar 4500K XPG
These are good cheap LED with known spec, perfect for testing any project. You can use your fancy LED later


Worked fine with 3 XPG: roughly 9V, 7,9watt/channel. Could be wired for a total 3 x 7,9watt = 23-24watt total.

With 2 x 144AM (6V); roughly 10,56watt per channel the IC smoked less than 10 minutes. So you better limit the output to ~8 watt/channel. With new XPG2/3 or 219C you will get lower output power since the vf of these newer LED are lower but possibly still brighter than the good old XPG. If you can find the same IC it should easy to fix, I think it’s common IC found online.



If you want to use this driver you better cool the inductor, they got very warm (not too hot) with 3 x XPG. Hence the fan.
The fan got very noisy after ~1 year street use. The salty balinese dust sucked rubbed the exposed plain bearing.
@JasonWW: We never wanted to use those badly designed LED engine. I offered Stormrider the driver, not suggesting him to use it as is. It’s an awful kind of LED lamp indeed. I bought it during the dark ages when anything brighter than halogen bulb attracted me. And no, I really hate cool white headlight, no matter what CRI they are.
As for the image hosting, try Flickr. Rather complicated but allows you to store very high quality images complete with copyrights protection and rich features.