Rain Sensor Features: 1.Rain sensor activate the wiper then rain.According to the amount of raindrop,it adjust the wiper speed automatically as intermittent/slow/fast 2.The switch of the rain sensor take the place of the orginal interittent controller,and the slow and fast speed mode function is still reserved Light Sensor Features: 1.Light sensor be activated at dusk or the car gets into the poor light spots like tunnel and garage,the system activate the motormeter light and dipped headlight 2.The Light sensor switch is jointed with the headlight switch.When you star the car,you can cancel the automatic hadlight mode by light control handle,so you be to operate the headlight manually.If you restart the car,the automatic headlight mode be activated again 3.In order to reserve the power to start the engine,the sensor system delay turning on th headlight by 5 seconds when starting the engine at night Supply Voltage DC10V -16V Operating Current Less than 200 mA Operating Temperature -20