This product is a 2-channel relay module board with LED indicators, It can be controlled by microcontrollers such as Arduino, AVR, PIC,Raspberry Pi, any other microcontroller operating at 5V.

Features:

• Imported high quality double sided compact PCB.
• Opto-Isolated inputs, means your digital electronics is safe and noise free.
• This relay module is 5V active low.
• It is an 2-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc.
• It is also able to control various appliances and other equipment with large current.
• Relay output maximum contact is AC250V 10A and DC30V 10A.
• Standard interface can be directly connected with microcontrollers.
• Red working status indicator lights are conducive to the safe use.
• Widely used for all MCU control, industrial sector, PLC control, smart home control.

Technical Specifications:

• Working voltage: 5V
• Channel: 2 channel
• Item size: approx. 4.9 * 3.8 * 1.7cm / 1.93 * 1.5 * 0.67in
• Item weight: 29g 
• Package weight: 32g