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Home / Computer Hardware, Monitors & Peripherals / Photoresistor Relay Sensor Control Module Light-Controlled Switch No-Light Sensing Module 24V

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage DC 24V
Max Load Current 10A
Sensor Type Photoresistor (LDR)
Relay Contact Configuration NO/NC/COM
PCB Dimensions 50mm x 30mm x 15mm
Sensitivity Adjustment Adjustable Potentiometer
Operating Temperature -20°C to 60°C
Terminal Type Screw Terminal Block
Status Indicator LED Power & Relay Status
Package Weight 25g

5 reviews

A

Anonymous

Apr 12, 2026

Rating: 4/5

Good value but needs tuning

The module works well overall. I had to spend some time adjusting the potentiometer to get the sensitivity right for my specific location. Once set, it is stable.

A

Anonymous

Mar 07, 2026

Rating: 4/5

Solid build quality

Does what it says on the tin. The PCB looks well-made. I wish it came with a waterproof enclosure option, but for indoor use, it is perfect.

A

Anonymous

Feb 20, 2026

Rating: 5/5

Easy to wire

Clear labels on the board made wiring straightforward. The screw terminals are sturdy and hold the wires securely. Great component for automation.

A

Anonymous

Feb 18, 2026

Rating: 5/5

Reliable 24V module

Using it in an industrial control panel for ambient light detection. The relay clicks clearly and the voltage rating is accurate. Highly recommend for DIY projects.

A

Anonymous

Jan 31, 2026

Rating: 5/5

Works perfectly for garden lights

Installed this for my 24V garden lighting system. It detects dusk accurately and switches the relay without any issues. Very satisfied with the purchase.

5 FAQ

Q: Is the PCB waterproof for outdoor installation?

A: The module itself is not waterproof. We recommend installing it inside a weatherproof enclosure if used outdoors.

Q: Can I use this to control an AC light bulb?

A: Yes, you can control AC loads using the relay output terminals (NO/COM), provided the load does not exceed the relay's current rating.

Q: What is the maximum wattage this can handle?

A: At 24V DC, the max load is 240W (10A). For AC loads, please check the relay rating stamped on the component, typically up to 250VAC.

Q: Is there a time delay feature to prevent flickering?

A: This standard model does not have a built-in time delay. It reacts directly to light changes detected by the sensor.

Q: Can this module operate on 12V instead of 24V?

A: No, this specific model is designed for DC 24V input. Using 12V may result in unreliable relay switching.

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