Attributes

Brand	-
Category	Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin	-
Operating Voltage	5V DC / 12V DC
Detection Component	Photoresistor (LDR)
Output Signal	Digital Switching Output (0 and 1)
PCB Dimensions	3.2cm x 1.4cm
Comparator Chip	LM393
Sensitivity Control	Adjustable via Potentiometer
Power Indicator	Red LED
Output Indicator	Green LED
Mounting Hole Diameter	3mm
Operating Temperature	-10°C to +50°C

5 reviews

Anonymous

Mar 04, 2026

Rating: 5/5

Great value for money

Bought five for different automation projects. All working perfectly out of the box. Fast response time.

Anonymous

Feb 06, 2026

Rating: 5/5

Perfect for my night light project

Works exactly as expected. Easy to tune sensitivity with the potentiometer. Used it to trigger a relay when room gets dark.

Anonymous

Feb 05, 2026

Rating: 4/5

Does the job

Sensitive enough for indoor use. Shipping was fast and packaging protected the components well.

Anonymous

Feb 05, 2026

Rating: 5/5

Reliable light sensor

Using it to control a fan based on sunlight exposure in my greenhouse setup. Very stable readings.

Anonymous

Feb 01, 2026

Rating: 4/5

Good module, clear instructions

Works well with Arduino. Wish the pins were labeled clearer on the board itself, but the documentation helped.

5 FAQ

Q: Does it come with pin headers?

A: Yes, pin headers are included for easy breadboard use and connections.

Q: What is the max current for the output pin?

A: The digital output is signal level. Please use an external relay for high current loads.

Q: Can this handle 12V input directly?

A: Yes, the module supports both 5V and 12V DC input voltage.

Q: Is this compatible with Raspberry Pi?

A: Yes, it works with any microcontroller accepting digital input signals.

Q: How do I adjust the light sensitivity?

A: Use the blue potentiometer on the board with a small screwdriver to calibrate the threshold.

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