4 Channel 5V Relay Board Module Optocoupler LED for Arduino PiC ARM AVR This is a 5V 4-Channel Relay interface board. Be able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) . 5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current. Equiped https://elecena.pl/product/18529641/4-channel-5v-relay-board-module 2021-05-21 https://elecena.pl/product/18529641/4-channel-5v-relay-board-module 2025-07-09