DIY LED Spotlight

This is a DIY spotlight / work lamp. Ultimately, this project will probably cost more than what you can buy on the market. However, here you can select the color, angle and other characteristics of the led array to fit your specific needs. You can also select how much current the spotlight uses; so if you just need some ambient light during camping, you can design the circuit for a low-intensity light that use warm (even candle-like) white leds that will last for days.

This project uses a Delwalt 20V battery pack as a power source but it is customizable and if you can change "PART-A" to fit another battery brand since "PART-A" is just glued to "PART-B". It comes with two reflectors: the first one uses 36 leds and the other 42. I have provided the source file as well so you can modify this to your heart's content and make the reflector bigger, change its shape, make leds more tightly packed, and so on... The provided parts provide a certain flexibility when using ~2V leds (such as red