# 12V relay module with light sensor

> 12V relay module with an integrated light sensor (photoresistor). Powered via the VIN and GND pins at 12VDC, with a switching threshold adjustable through the onboard potentiometer. The relay has NC, COM and NO contacts and can switch loads rated AC 250V/10A or DC 30V/10A. It activates when light exceeds the set threshold and deactivates below it. Reference 33382.

- Page: https://sigmanortec.ro/en/12v-relay-module-with-light-sensor
- Price: 15.94 RON
- Availability: In stock; 1-2 zile
- Reference: 33382 · EAN: 5949920782434
- Category: Electronic components > Relays
- Specifications: Output Type Voltage: Closed-Open Contact; Input Voltage: 12 V; Input Voltage Type: “DC” in Romanian can mean **“de ce”**, which translates to **“why”** in English.
- Package (shipping data): 0.015 kg
- Updated: 2026-09-12
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:32 (Europe/Bucharest)

## Description

Automates the start of a consumer depending on the ambient light, the switching threshold is adjusted from the integrated potentiometer. It is powered at 12VDC via VIN and GND, controls AC or DC loads via NC, COM, NO contacts. 10A relay for 250VAC or 30VDC, activation when the set light level is exceeded and deactivation below the threshold.
12V relay module with built-in light sensor.
The module can activate a load depending on the light intensity, with the relay activation sensitivity adjusted by the potentiometer integrated on it. The relay can be used with AC or DC loads (the module is powered only by 12V DC). The module is powered with 12VDC through the pins marked VIN and GND.
The relay is activated when the amount of light falling on the photoresistor exceeds the limit set by the potentiometer. When the light is weaker than the set limit, the relay is deactivated.
Specifications:
Supply voltage: 12VDC
Supported load: AC 250V/10A, DC 30V/10A
Logic voltage: 12VDC
Relay pins: NC, COM, NO