Rain Sensor Features: 1.Rain sensor will activate the wiper then rain.According to the amount of raindrop,it will adjust the wiper speed automatically as intermittent/slow/fast2.The switch of the rain sensor will take the place of the orginal interittent controller,and the slow and fast speed mode function is still reservedLight Sensor Features: 1.Light sensor will be activated at dusk or the car gets into the poor light spots like tunnel and garage,the system will activate the motormeter light and dipped headlight2.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 will be able to operate the headlight manually.If you restart the car,the automatic headlight mode will be activated again3.In order to reserve the to start the engine,the sensor system will delay turning on headlight by 5 seconds when starting the engine at nightSupply Voltage DC10V -16VOperating Current Less than 200 mAOperating Temperature -20 degree -85 degreeRelay Current 20AWiper response Time 0.1 secondDetection Sensitivity 0.005 milliliters(Water)Colour:blackMaterial:ABSPackage Contents:1set x Rain & Light SensorOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.