YYB-3 Dual Relay Module (Received from ICStation.com)

In this video I demonstrate all six different functions of YYB-3 dual channel relay module. It's a relay module with built-in power supply, so no need for extra power supplies when used to switch mains wires.
WARNING Be careful when using mains powered modules, like this one. Don't do it, if you are not 100% sure what you are doing. Stay safe everyone!
This module was given to me by ICStation.com
"Dual Channel Relay Module AC Motor Positive/Negative Rotate Controller Board 220V":
www.icstation.c...
Use COUPON CODE "hhics" to get 18% off. (Max Use: 1 (one for per user). Amount Limit: 100).
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