Relays are suitable for driving high power electronic devices such as lights, electric fan and air condition. This relay module can be used to control high voltages with a low voltage by connecting to an MCU
Controls DC or AC signals - 220V AC load
Working voltage: 5v; PCB size: 2.0 x 4.3 cm
With power indicator and signal output indicator
Working principle: when a high level is given to SIG, the PNP transistor is energized, coil of the relay electrified, normally open contact closed, and the indicator LED lights up; when a low level is given, PNP will be de-energized, the original state is restored - the normally closed contact closed, and the indicator LED goes out then. For more info, please refer to http://wiki.sunfounder.cc/index.php?title=Relay(LOW)_for_Arduino

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 1.6 inch
Height : 0.4 inch
Length : 2.7 inch

Item Weight: 0.96 ounce (View shipping rates and policies)
Shipping Weight: 2.4 ounce (View shipping rates and policies)

ASIN : B0151F3A9Q