Light Sensitive LDR Relay Module 5V

Description

Light Sensitive LDR Relay Module 5V The Light Sensitive LDR Relay Module 5V is a self-contained switching solution that uses an LDR sensor mounted on a 10-inch lead to detect ambient light levels and automatically energize or de-energize a relay at a user-adjustable threshold. It operates from a 5 V supply and includes both normally open (NO) and normally closed (NC) contacts for versatile use. The onboard LM393 comparator and indicator LED provide clear operation feedback. The potentiometer allows fine-tuning of the brightness trip point, and protection components such as a flyback diode and reverse polarity diode ensure reliable performance. Features Automatically controls the relay based on ambient light intensity. Includes an LDR sensor with a 10″ lead for remote light detection. Adjustable threshold via potentiometer for customizable light sensitivity. Supports switching of 115/230 VAC or 0–15 VDC loads at up to 10 A. Provides both NO and NC relay contacts for flexible output configuration. Indicator LED lights when the relay is energized. Operates on a 5V power supply. Includes flyback and reverse-polarity protection diodes for safe operation. PINOUT Specifications Parameter Value Operating Voltage 5VDC Operating Current (Idle) ~5mA Operating Current (Relay ON) ~55mA Relay Contact Rating (DC) 15VDC @ 10A Relay Contact Rating (AC) 250VAC @ 10A Sensor Lead Length 10″ (254 mm) Trip-Point Adjustability Via onboard potentiometer Dimensions (PCB) 53mm x 31mm x 20mm Applications Automatic night-light activation when ambient brightness drops below a preset level. Daylight-responsive lighting control for security systems. Flame detection under certain lighting conditions. Light-level triggered automation without the need for a microcontroller. Package Contents 1x Light Sensitive LDR Relay Module 5V 1x LDR sensor on 10″ lead with connector.

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