Description
FainWan 2pcs 2 Channel Relay Module with Optocoupler 5V Active Low Level Amplifier Trigger JD VCC Relay Power VCC Power bestsellers_healthUK_Sep2023 Just follow the instructions in sold2025 Size:3pcs (10+19+25mm) B09KN6RF28 CS Unitec 38528 Pipe Just follow the instructions in the user manual to wire up ensuring superior joint strength