Outdoor Dusk to Dawn Photoelectric Sensor Switch | Rainproof

Automatic Dusk-to-Dawn Photoelectric Sensor Switch

Take the hassle out of managing your outdoor lighting with the HELTC CDS-W10 Intelligent Photoelectric Sensor Switch. This smart light-sensing switch automatically turns your lights on at dusk and off at dawn — no timers, no manual switching, no guesswork. Perfect for street lights, corridor lights, advertising light boxes, security fill lights, and more. Made in Mainland China.

Why You'll Love It

• Fully Automatic Operation: A high-sensitivity photosensitive probe detects ambient light levels, powering on when brightness drops below 30 LUX and powering off when it exceeds 150 LUX.
• Rainproof & Weather-Resistant: Designed for outdoor use and built to withstand the elements, season after season.
• Lightning & Surge Protection (Style 2): The Over Surge style variant includes built-in protection against voltage spikes, keeping your connected equipment safe.
• Delay Circuit Function: Prevents false triggers or accidental switching caused by brief light fluctuations.
• Wide Voltage Compatibility: Supports DC 12V, DC 24V, and AC 100–260V — versatile enough for a broad range of residential and commercial lighting circuits.
• Stable Year-Round Performance: Operates reliably across temperatures from -20°C to +50°C, unaffected by seasonal weather changes.
• Easy Installation: Simple 3-wire connection (Black = Input L, White = Input/Light Source N, Red = Light Source L).

Technical Specifications

• Model: CDS-W10
• Voltage Options: DC 12V / DC 24V / AC 100–260V (optional)
• Frequency: 50–60 Hz
• Turn-On Threshold: < 30 LUX
• Turn-Off Threshold: > 150 LUX
• Operating Temperature: -20°C to +50°C
• Material: Plastic
• Styles: Regular | Over Surge (lightning protection)
• Country of Origin: Made in Mainland China

Ideal Applications

• Street and roadway lighting
• Corridor, hallway, and aisle lights
• Advertising and signage light boxes
• Traffic and license plate illumination
• Security and monitoring fill lights
• Schools, factories, and commercial facilities

Installation Tips

• Do not install in particularly dark areas during the day or in areas directly illuminated by always-on lights, as this may affect automatic detection.
• During daytime testing, cover the photosensitive probe with an opaque material to simulate nighttime conditions.
• Connect white and black wires to the power supply; connect white and red wires to the load.

Package Contents

• 1 × Photoelectric Sensor Switch (CDS-W10)

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For more information on electrical safety standards for consumer electronics, visit the U.S. Consumer Product Safety Commission (CPSC).

Learn more: Light switch

Frequently Asked Questions

Q: What voltage does this photoelectric sensor switch support?

A: The HELTC CDS-W10 is available in three voltage options: DC 12V, DC 24V, and AC 100–260V. Please select the correct voltage for your lighting circuit before purchase.

Q: How does the automatic dusk-to-dawn function work?

A: The switch uses a high-sensitivity photosensitive probe to continuously measure ambient light levels. When brightness falls below 30 LUX (dusk/night), the connected light turns on automatically. When brightness rises above 150 LUX (dawn/daytime), it turns off — all without any manual intervention.

Q: Is this sensor switch suitable for outdoor use in rainy or harsh weather?

A: Yes. The switch is designed to be rainproof and operates reliably across a wide temperature range of -20°C to +50°C, making it suitable for outdoor installations in varying weather conditions.

Q: What is the difference between the Regular style and the Over Surge style?

A: The Regular style is the standard photoelectric sensor switch. The Over Surge style includes built-in lightning and voltage surge protection, making it a better choice for areas prone to electrical surges or lightning activity.

Q: How do I wire the photoelectric sensor switch?

A: Wiring is straightforward with three color-coded wires: the Black wire connects to input Line (L); the White wire connects to input/light source Neutral (N); and the Red wire connects to the light source Line (L). Always follow local electrical codes and consult a qualified electrician if unsure.