Eye Photocell Light Sensor for Most Hardwire Outdoor Lamp Fixtures and Bulbs 80VAC-277VAC 50/60HzOOTDTY Features : Energy Saving, Long Lifespan, Safe and Reliable. Using three-wire system, compatible with resistance. Indoor environment with automatic lighting detection circuit, shut down during the day and automatically open at night. Control the lighting time according to the ambient light value automatically. Suitable for LED lighting and outdoor monitoring, advertising gallery, garden lights and other automatic lighting control. Specification:Material: ABS Model: nk-b/E277Wiring: export Three-wire systemVoltage range: 80VAC-277VAC 50/60HzStandby current: 0.5mA. Output Power: 800w Operating Ambient Temperature: -25°c - 85°c Rated Voltage: 110v 120v 220v 240v 277v Size: Approx. 52.5x28.8x22.4mm/2.06x1.13x0.88inchPackage Included: 1x Lamp Switching SensorNote: 1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.