Originally Posted by mutilatedjak
What's your objective? Custom led light bars like Rigid or something? I've built custom component led projects before for fun. The problem with building your own light bar style light is that creating the proper reflector contour is a pain in the ass. Sure those leds throw a ton of light, but it just goes everywhere. You need a good reflector and lens to get that light to project to any use able distance.
There was a thread somewhere where someone built their own light bar, aluminum extrusion for the body and so forth... I'll have to see if I can find it
There is a LOT to consider to do this. One is optics. They can be had. Little reflectors that clip onto the LEDs. Then the Power supplies. These are high power LEDs and cannot simply be run with a resistor to control current. they need a switching DC-DC power supply. This is a complicated design to say the least. The last and I think the most difficult thing in making your own is heat sinking. These LEDs generate tons of heat and need good heat sinking to draw the heat out of them or they will simply blow out. I have made some smaller round LED lights with these kind of LEDs and the optics but still had issues with heat as i couldn't find a suitable off the shelf heat sink that worked in my application. It can be done and someone on this board has, but its really not practical. Better off just buying a made bar.
My Credentials on the subject:
I'm an applications engineer for the company that makes the led driver chip in the Rigid bars.