AC 220V 10A Photocell Street Light Sensor – Automatic Dusk-to-Dawn ON/OFF Photocell Switch for Outdoor Lighting

Product Description The AC 220V 10A Photocell Street Light Sensor is an industrial-grade automatic switching solution designed for energy-efficient outdoor lighting management. Operating on the "Dusk to Dawn" principle, this module utilizes a high-sensitivity light-dependent resistor (LDR) to detect ambient light levels and automatically toggle the 220V power supply to connected lamps. Encased in a weather-resistant, UV-stabilized housing, it is the perfect solution for street lights, garden lamps, factory perimeters, and signage lighting. The integrated 10A relay allows for direct control of high-power LED floods or incandescent bulbs without the need for an external contactor, significantly reducing electricity wastage and manual operation.

Key Features

• Automatic Day/Night Detection: Fully automated switching logic turns lights ON at sunset and OFF at sunrise without manual intervention.

• 10A High Load Capacity: Capable of handling up to 2200W of resistive load, making it suitable for multiple LED street lights in parallel.

• Weatherproof Construction: Designed with an IP-rated enclosure to withstand rain, dust, and direct sunlight in outdoor environments.

• Anti-Interference Delay: Features a built-in 5-10 second time delay to prevent accidental switching caused by lightning or passing vehicle headlights.

• Energy Saving: Drastically reduces carbon footprint and electricity bills by ensuring lights only operate during necessary dark hours.

Technical Details

• Operating Principle: Employs a cadmium sulfide (CdS) photocell that triggers an electromagnetic relay based on photon density.

• UV Protection: The translucent cover is manufactured from UV-resistant polycarbonate to prevent yellowing and maintain sensor sensitivity over years.

• Wide Voltage Range: Optimized for 220V-240V AC systems, commonly used in residential and industrial power grids.

• Switching Thresholds: Calibrated to activate when light levels drop below 30 Lux and deactivate when ambient light exceeds 150 Lux.

• Integrated Relay: Uses a high-quality electromagnetic relay with silver alloy contacts for low contact resistance and high durability.

• Wiring Setup: Features a standard 3-wire or 4-wire interface (Line, Neutral, and Load) with clear color-coded insulation.

• Internal Filtering: Built-in surge protection helps the internal circuitry withstand minor voltage fluctuations in the AC line.

• Thermal Stability: Maintained operational accuracy in temperatures ranging from -20°C to +50°C.

• Low Standby Power: Consumes negligible energy (less than 0.5W) while in the monitoring state during the day.

• Mechanical Design: Includes a robust metal mounting bracket for easy screw-fix installation on walls or utility poles.

• Safety Isolation: The internal PCB is physically isolated from the outer shell to prevent electrical leakage to the mounting surface.

• Inductive Load Handling: While rated for 10A resistive, it is recommended to limit inductive loads (motors/heavy ballasts) to 5A for longevity.

• Frequency Compatibility: Works seamlessly with both 50Hz and 60Hz AC frequencies.

• Compact Footprint: Miniature design allows it to be tucked away or integrated into existing junction boxes and lamp housings.

• Moisture Drainage: Features a specialized structural design that prevents internal condensation buildup.