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4-Channel Relay Board, Opto Isolated, Low Level Trigger
[1553][IOT-RLY04LL]

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This is a 4-Channel 5V Relay interface board, be able to control various appliances, and other equipments with large current.

It can be controlled directly by ESP8266

Specifications:

4 x High-current relay, AC 250V 10A ; DC 30V 10A

Optical coupling isolation

VCC system power, JD_VCC relay power, default 5V relay, just plug in jumper cap

Indication LED's for Relay output status

4 fixed screw holes, hole diameter: 3.1mm

Module size: 75 x 55 x 20mm

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