RC Lighting Control Using External Power
Some of you are adding some cool light systems that run on 12 volts.
Maybe you want to be able to turn these on and off using your transmitter. I've been selling the Remote Switch For LED Lighting
but that only lets you power your lighting using the voltage from the receiver.
If you wanted to run an external battery so that you could run a different voltage to the lights or just didn't want to load down the supply that powers your receiver and servos, you were out of luck.
The part I am showing in the picture below lets you turn your lighting on and off and run it from another power supply.
You could connect a small battery pack consisting of two AA cells or a 9V (I don't recommend using a 9V battery) or a two, three or even a four cell lipo pack - whatever your lighting system needs to operate.
The component that takes care of the power switching is rated to accept 24 volts max and if it had a proper heat sink, more than 20 Amps.
Due to the lack of heat sink and the gauge of the wires used for the build, I would suggest that you keep the load to less than 10 amps or the wires might turn into a mess!