DHT22 temperature-humidity sensor 
DC 12V Light Control Switch – Photoresistor Relay Module
₵38.00
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.
Out of stock
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.
Key Features
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Automatic Light Detection: Uses a photoresistor (LDR) to detect ambient brightness
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Relay Output: Controls AC or DC loads automatically based on light levels
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High Sensitivity: Adjustable detection threshold via onboard potentiometer
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LED Indicators: Visual feedback for power and relay status
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Isolation Design: Optocoupler isolation for improved safety and signal integrity
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Plug-and-Play: No programming required — just connect and configure
Technical Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | DC 12V |
| Relay Contact Rating | 10A @ 250VAC / 10A @ 30VDC |
| Detection Type | Light-dependent (photoresistor) |
| Output Type | Relay (NO/NC terminal) |
| Adjustment | Sensitivity via potentiometer |
| Trigger Condition | Darkness / Low light (adjustable) |
| Dimensions | Approx. 50mm × 26mm × 18mm |
Package Includes
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1 × DC 12V Light Control Switch Module with Photoresistor (Relay-Based)
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