Automatic Light Switch

Have your vehicle's lighting turn on automatically when it gets dark.  This part consists of a power input, a power output, and a light sensor.  There is a rotary control that is used to set the light sensitivity so that when it is dark enough, the power to the light is turned on.

Order it with pigtail leads on the input and output, with servo plugs, or with a double deans style, or double XT60 power input. 
This can send either receiver power or battery power to your lights.