- Color: Blue  - Material: PCB  - Sensitive photo resistor sensor with relay, direct control the load  - Output mode: Direct connect to AC 220V 10A load or DC 30V 10A load  - With adjustable potentiometer for adjusting sensitivity  - Working voltage: 5V  - With 4 fixed screw holes for easy installation  - Using wide voltage LM393 comparator  - Photo resistor sensor with relay module for street lamp and DIY projects etc.<img src="http://112.74.112.28/down/products/151323/151323_000.jpg">