Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Working Voltage | DC 5V / 12V / 24V |
| Control Mode | Light Control (Photoresistor) |
| Relay Contact Capacity | 10A 250VAC / 10A 30VDC |
| Sensor Type | Photodiode / Photoresistor |
| Trigger Logic | Low Level Trigger |
| PCB Dimensions | 42mm x 25mm x 15mm |
| Mounting Hole Diameter | 3mm |
| Operating Temperature | -20°C to 70°C |
| Sensitivity Adjustment | Blue Potentiometer |
| Status Indicator | Red LED (Power), Green LED (Relay) |
Anonymous
Mar 07, 2026
Rating: 3/5
Sensitivity drifts slightly
Works okay but I noticed the trigger point changes slightly with temperature. Had to recalibrate once during summer. Still usable though.
Anonymous
Feb 11, 2026
Rating: 5/5
Perfect for outdoor lighting
Used this to control my porch light. Works exactly as described. Adjusted the sensitivity with the screw and now it turns on at dusk reliably.
Anonymous
Feb 06, 2026
Rating: 5/5
Great for Arduino projects
Integrated this with my home automation setup. The voltage selection jumper is convenient. No issues after a month of use.
Anonymous
Feb 04, 2026
Rating: 4/5
Good value module
Does the job well. The relay click is a bit loud if you put it in a quiet room, but for outdoor use it's fine. Wiring was straightforward.
Anonymous
Feb 03, 2026
Rating: 5/5
Reliable sensor
Bought two of these. Both work perfectly. The green LED indicator helps confirm when the relay is active. Highly recommend for DIYers.
Q: Is the light sensor directional?
A: The photoresistor is on the top of the board. Ensure it faces the ambient light source you wish to detect for best results.
Q: What is the maximum wattage it can handle?
A: The relay is rated for 10A. For 220V AC, that is approximately 2200W. Please do not exceed the rated capacity.
Q: Does it come with screws for mounting?
A: No, the module does not include mounting screws. You will need M3 screws separately.
Q: Can I use this with a 24V power supply?
A: Yes, there is a jumper on the board to select between 5V, 12V, and 24V input.
Q: Can I reverse the logic to turn on during the day?
A: No, this module is designed specifically for night activation (dark triggers relay). For day activation, you would need a different circuit design.
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