To turn on or off the light in day and night without manual operation Do not install the control unit in a place extremely darker in daytime or a place directly by lighting of turning – ON lamp Widely used: street light, highway, factories, garden, ports, airports, farm, parks, schools, and other places. Also can fit into solar lamps and lanterns, or cars, motorcycles, electric cars and other power supply voltage is 220V lamps and lanterns or equipment Easy to install and Convenient to use Model:AS-10-220 Input Voltage: DC or AC 220V Max Load Current: 10A Size:(approx)5 x 4.2 x3.5cm/1.96″x1.65″x1.37″ Frequency:50-60Hz