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 HeyOK External Power Remote Switch 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, HeyOK suggest that you keep the load to less than 10 amps.
Maximum Switched Current: 10A
Go to your transmitter and use your Channel 3 switch. If it is a two position channel, flip the switch to turn the lights on and off. If it is a three position third channel, the two outer positions will give you on/off. If you have a linear third channel, move the control from one end to the other. You will notice the output switching somewhere near the center of the control's motion.
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