8 Channel 12V Relay Module BK_RL8_01

This 8-channel relay module is a great choice for controlling lighting, electrical, and other equipment. Its modular design allows for easy expansion with Arduino boards or other MCU boards like PIC, ARM, and MSP430. The relay output state is indicated by a light-emitting diode. Specification: Drive current is 20mA, control signal supports 5V/12V/24V TTL level, maximum switching voltage is 250VAC and 30VDC, and dimension is 91mm*57mm*15mm.

Using this relay module is easy. First, connect it to your Arduino or other compatible MCU board according to the instructions. Then, you can use it to control various equipment like lights and electrical devices. When using, make sure the control signal voltage is within the specified range (5V/12V/24V TTL level). Don't exceed the maximum switching voltage of 250VAC and 30VDC to avoid damage. For maintenance, keep it clean and dry. If there are any issues, check the connections first.