Relay
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Breakout BoardsRelay Module With Optocoupler, 5V DC Control, 1/2/4/6/8 Channel
From: £4.96 inc VAT Select options -
Relay Breakout Board
These breakout boards allow you to drive a high-power load with minimal hassle. Just connect them up to whatever microcontroller you are using and let the relay take care of delivering high current you need.