This is a body and back plate to combine two of the Harbor Freight work lights that you can often get for free with a coupon. It uses the lens, LEDs, and screws from the original lights. I built this to film night fishing, but it could easily be used for as a work light or anywhere else you need a little extra light. The GoPro style mount means it should be very versatile.
You'll also need a standard rocker switch, an 18650 lithium ion battery, a BMS for the battery, a cheap voltage regulator, a zip tie, and some wire. I used hot glue to hold the lenses, reflectors, BMS, and voltage regulator in place. I also used kapton tape to insulate the aluminum back of the LEDs to prevent any short circuits in the voltage regulator.
This should print without supports other than the GoPro mount.