📡 Channel Module Optocoupler Trigger by HiLetgo Review

I've wanted a multi-relay module like this for a long time. This works as I expected. The input voltage requires 12V, but the trigger voltage can be driven directly from 5V by an Arduino or similar microcontroller. The circuit board is well designed and of good quality. I put together a quick and easy Arduino program to cycle through each of the relays to test everything. It worked like a charm. Check out my uploaded video. This is a great product at a reasonable price.

I installed a set of switches on my jeep dash but didn't have enough room to run large wires to power lights etc, the switches were for control. So I just ran a CAT 6 wire that can't carry power to the switches and then to this relay board. Then of course I powered the relay board with real wire and it worked perfectly. I mounted the board onto a piece of cheap cutting board I bought from Wally World and mounted it under the steering wheel in my Jeep. Showing people the relay board and how I…

Works as advertised. I've used several of these for various projects, all have worked well, all are reliable. Everything is clearly marked on the board. This can be caused by 12V or 5V, there are small jumpers to change this, again everything is clearly marked. Isolation is a nice feature, although not strictly necessary in any of the applications I need. The screw terminals hold the 18 gauge stranded wire very securely (you can even connect two if you're careful). I like the LEDs for each…