Having made a couple of halogen-based bike lights last year, I decided to try my hand at a couple of LED lights this year. I have some novice electronics and soldering skills, and love to go to the hardware store to see what random bits and pieces I can turn into something entirely unintended but useful. After hearing so much about dealextreme.com on this site, I went up there and ordered up some optics, cree LED's, and some drivers. My initial thought was that I may like to make a 3-LED light, but if the LED's are bright enough with my 7.2v 3500mAH NiMH batteries, I'll make a couple single-LED lights.
My shipment arrived yesterday. The LED's are: these and drivers: these. Here's what I got:
I'm not sure if I was expecting some instructions, or maybe some more obvious markings, but it's not clear to me where to connect the battery leads, and then where to connect the driver to the LED's. I'm assuming the battery leads get connected to the circles on the bottom of the driver, but there's an inner and outer, and neither are marked + or -. There are clear + and - leads coming off of the driver, which I assume goes to the LED, but the LED has two + and two - connection points, and I'm not sure if it matters which ones I use.
If any of you have any experience with this and can point me in the right direction, I'd much appreciate it!