This is a simple 8 channel relay module. It can be used to control lighting, actuators and other electronic equipment. It's great for use with an Arduino and most common microcontrollers in a system where higher voltage control is needed. The Relay output state is clearly shown by a light-emitting diode at the base of the board.
- Drive current: 20mA
- Control signal: 5V TTL level
- Maximum switching voltage: 250VAC 30VDC
- Dimension: 91mm*57mm*15mm