DC 12V Light Control Switch – Photoresistor Relay Module

The DC 12V Light Control Switch Module with a built-in photoresistor (LDR) is a smart relay module that automatically switches devices on or off based on ambient light levels. Ideal for energy-saving applications such as street lights, garden lamps, or solar-powered systems, this module activates a connected load when it gets dark and deactivates it during daylight.

Simple to use and compatible with various loads, the module offers plug-and-play functionality for automation projects, hobby electronics, and lighting control systems.

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Key Features

• Automatic Light Detection: Uses a photoresistor (LDR) to detect ambient brightness

• Relay Output: Controls AC or DC loads automatically based on light levels

• High Sensitivity: Adjustable detection threshold via onboard potentiometer

• LED Indicators: Visual feedback for power and relay status

• Isolation Design: Optocoupler isolation for improved safety and signal integrity

• Plug-and-Play: No programming required — just connect and configure

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Technical Specifications

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Package Includes

• 1 × DC 12V Light Control Switch Module with Photoresistor (Relay-Based)