It is an isolated 12V 10A relay module with 16 channels, each relay can be switched on and off individually via -isolated digital input. The standard interface can be directly connected to microcontrollers and controlled by a variety of microcontrollers such as for , AVR, PIC, ARM, , etc. Equipped with high current relay, maximum load: AC250V 10A, 15A 125VAC, DC30V 10A; -isolator current: 5mA. RELIABLE: Fault-tolerant design, even if the control line breaks, the relay not move; With optical coupling insulation, more reliable, more stable. EASY INSTALLATION: Equipped with screwed terminal plate and fixed screw holes (diameter: 3.1mm) on both sides for easy installation. With indicator LEDs for relay output status. The working status indicator lights up to safe use. Colour:blue Material:pcb Package Contents: 1 x Relay Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.