Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | DC 12V |
| Load Capacity | 10A Relay Output |
| Sensor Type | Photoresistor (LDR) |
| Detection Mode | No-Light Activation |
| Adjustment | Potentiometer for Sensitivity |
| Indicator LED | Yes, Power and Status |
| PCB Dimensions | 32mm x 14mm |
| Mounting Holes | 3mm Diameter |
| Response Time | < 1 Second |
| Application | Street Lights, Garden Lamps |
Anonymous
Mar 30, 2026
Rating: 5/5
Reliable night switch
I use this to control a small water pump for my fountain at night. It handles the relay click quietly and switches precisely at dusk. Highly recommended for hobbyists.
Anonymous
Mar 28, 2026
Rating: 5/5
Easy to integrate
As someone new to electronics, I found this very easy to use. The labels on the board are clear, and the potentiometer makes it simple to calibrate for different lighting conditions.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for my garden lighting project
This module works exactly as described. I connected it to a 12V LED strip, and it turns on automatically when the sun goes down. The sensitivity adjustment is very smooth.
Anonymous
Mar 02, 2026
Rating: 4/5
Good value but needs careful wiring
The sensor is responsive and reliable. Just make sure you double-check your polarity before connecting power. Once set up, it has been working flawlessly for weeks.
Anonymous
Mar 02, 2026
Rating: 5/5
Exactly what I needed
Compact size fits perfectly inside my junction box. The no-light sensing logic is inverted correctly for my setup, turning loads on when it gets dark without any extra coding.
Anonymous
Mar 01, 2026
Rating: 4/5
Solid performance
Works well for low voltage applications. The relay feels sturdy. I deducted one star only because the mounting holes are a bit tight for standard screws, but otherwise great.
Q: Is there a delay feature to prevent flickering?
A: This basic model does not have a built-in time delay circuit. It reacts almost instantly to light changes. For flicker prevention, you may need to add an external capacitor or use a microcontroller.
Q: Can this module handle 220V AC directly?
A: No, the control circuit requires DC 12V input. While the relay contacts can switch higher voltages depending on the specific relay rating, the module itself must be powered by 12V DC.
Q: Does this come with a waterproof enclosure?
A: No, this listing is for the bare PCB module only. If you plan to use it outdoors, you must install it in a suitable waterproof enclosure.
Q: What is the maximum current the relay can switch?
A: The onboard relay is rated for up to 10A. Please ensure your load does not exceed this limit to prevent damage to the module.
Q: How do I adjust the light sensitivity threshold?
A: There is a blue potentiometer on the board. Turn it clockwise to increase sensitivity (activate in brighter conditions) or counter-clockwise to decrease it (activate only in darker conditions).
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