Top Light Sensors for 2025 - 10 Best Options

Energy-saving photoelectric light sensor switch for outdoor lighting.

The GOODSMANN Dusk-to-Dawn Light Sensor is a photoelectric switch that works with power pack transformers. Ideal for outdoor lighting, this photosensor automatically turns lights on at dusk and off at dawn, saving energy and adding convenience to your home lighting system.

Reliable dusk to dawn photocell light sensor with wall plate and button control.

The YCA1031 Photocell Sensor for Outdoor Lights is a versatile and reliable dusk to dawn light control sensor. It operates at 120V AC and comes with a wall plate and button photocontrol. It's UL Listed for safety and quality assurance, ensuring longevity and performance.

Digital sensor for accurate and reliable light intensity measurements in indoor environments.

The BH1750FVI is a digital light intensity sensor capable of measuring from 1 to 65,535 lux. It operates on a DC 5V power supply and uses the I2C interface for communication. Its primary application areas are indoors, for vegetables, nurseries, and greenhouses.

Versatile LDR light sensor compatible with Arduino, Raspberry Pi, and ESP32.

The WWZMDiB Light Sensor is a set of 6 pieces of 5MM LDR 5516 photoresistors with LM393 3 Pin 3.3-5V compatibility. This sensor is designed for use with Arduino, Raspberry Pi, and ESP32, making it a versatile tool for a wide variety of electronics and programming projects.

Highly sensitive Arduino-compatible ambient light sensor module pack.

The TEMT6000 Light Sensor Module is a pack of 5 high-sensitivity ambient light sensors, perfect for Arduino projects. These sensors are known for their accurate light intensity detection, making them ideal for smart home applications.

Weatherproof photocell sensors for automatic outdoor lighting control.

This pack contains two photocell sensors for outdoor lights, designed to automatically turn on lights at dusk and off at dawn. The sensors are 120VAC 50/60 Hz, IP54 waterproof, and feature a swivel mount for easy installation. Suitable for back yard lighting and other outdoor light fixtures.

Outdoor photocell sensor for automatic light control from dusk to dawn.

This hard-wired photocell sensor is designed to automatically control your outdoor lighting fixtures. It detects the level of ambient light and switches the connected lights on at dusk and off at dawn, improving both safety and energy efficiency.

Water-resistant photoelectric switch with dusk to dawn sensor.

This is a two-pack of highly-rated, UL listed photoelectric switches, designed for outdoor use with an IP65 water-resistance rating. The photocell sensor has a broad voltage input range (110V/120V/220V/240V) and features a dusk to dawn/day night sensor, which automatically controls the light according to the ambient light intensity.

Light-dependent resistor sensor set for Arduino and Raspberry Pi.

The LDR Photocell Photoresistor Light Sensor is a set of 10 pieces specifically designed for use with Arduino, ESP32, ESP8266, and Raspberry Pi. These sensors are perfect for light-dependent projects, allowing your device to react to light intensity changes.

Energy-saving outdoor photocell sensor with swivel mount for precise light control.

This Outdoor Photocell Sensor is a dusk to dawn day-night lighting control device with a swivel mount conduit. Designed for both indoor and outdoor use, this photoelectric sensor switch is ideal for controlling lighting, ensuring lights are only on when needed, hence saving energy.