1. Automatically detects environmental illumination with internal circuitry automatically shut down during the day, automatically turns on at night2. Three-wire system, compatible with resistive, inductive and capacitive loads multiple lights.3. Control object for LED lights, energy saving lamps, fluorescent, incandescent, exhaust fan lights.4. With delay function when environmental conditions change.5. Widely used in street lighting, highways, factories, garden, ports, airports, farms, parks, schools and other places6. Umbrella light control wiring methods: white wire share the zero wire - white wire black wire to connect the power - red wire to connect the load and white wire to connectthe lamp.