AS-20 Photocell Light Switch – Auto Dusk-to-Dawn, 110V/220V/DC12V
AS-20 Photocell Light Switch – Auto Dusk-to-Dawn, 110V/220V/DC12V
AS-20 Automatic Photocell Light Switch – Smart Dusk-to-Dawn Sensor
The AS-20 Automatic Photocell Switch is a robust, weatherproof sensor switch that automatically turns lights ON at dusk and OFF at dawn — no timers, no manual switching required. Ideal for street lights, garden lights, parking areas, ports, airports, and industrial facilities, this three-wire sensor switch makes outdoor lighting effortless and energy-efficient.
Key Features
- Fully Automatic Operation: Built-in ambient light detection circuit switches lights off during the day and on at night, completely hands-free.
- Wide Voltage Compatibility: Works with AC 110V, AC 220V, and DC 12V systems — versatile for residential and commercial installations worldwide.
- Three-Wire System: Compatible with a wide variety of load types including resistive, inductive, and capacitive — supports LED lamps, energy-saving bulbs, fluorescent lamps, incandescent bulbs, and exhaust fan lamps.
- Intelligent Delay Function: Features a built-in delay circuit to prevent false switching when environmental light conditions fluctuate briefly (e.g. passing clouds or vehicle headlights).
- Waterproof & Durable: Rain-proof housing made from quality plastic keeps the unit protected in outdoor environments year-round.
- CE Certified: Meets CE safety standards for peace of mind.
- Lightweight & Compact: Weighs only 56g; dimensions: 11 cm long × 6.6 cm diameter — easy to install on any backlight surface.
Technical Specifications
- Model: AS-20
- Operating Voltage: AC 220V / AC 110V / DC 12V
- Working Current: 10A @ 50Hz
- Max Load: Incandescent lamp <80W | Street lamp <80W | Fluorescent lamp <30W | Exhaust fan <30W | LED lamp <25W
- Switch Type: Photocell Sensor Switch
- Material: Plastic
- Certification: CE
- Country of Origin: Made in China
Suitable Applications
Street lights, highway lighting, garden and landscape lighting, factory premises, ports, airports, parking lots, and any outdoor area requiring automatic dusk-to-dawn light control.
Installation Note
Important: Do NOT install the sensor facing a light source. Always mount the sensor on a backlit surface (facing away from the lamp it controls) to ensure accurate ambient light detection.
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Frequently Asked Questions
Q: Can the AS-20 photocell switch work with LED lights?
A: Yes! The AS-20 automatic photocell sensor switch is fully compatible with LED lamps (up to 25W), as well as energy-saving bulbs, fluorescent lamps, incandescent bulbs (up to 80W), and exhaust fans (up to 30W), making it a versatile dusk-to-dawn switch for most common outdoor lighting setups.
Q: Is the AS-20 light switch suitable for outdoor use in rain?
A: Absolutely. The AS-20 features a rain-proof, waterproof housing designed to withstand outdoor weather conditions, making it well-suited for street lights, garden lighting, parking areas, ports, and other exposed outdoor environments.
Q: Does the photocell switch work on both 110V and 220V systems?
A: Yes. The AS-20 photocell sensor switch is compatible with AC 110V, AC 220V, and DC 12V systems, giving it wide compatibility for both North American and international electrical installations.
Q: Where should I install the AS-20 sensor switch?
A: Always install the sensor on a backlit surface — meaning the sensor should face away from the light source it controls. Mounting it in the direct path of the lamp's output will interfere with its ambient light detection and cause inaccurate switching.