KNACRO 8-Channel Relay Module High Low Level Triggering Optocoupler Isolation Load 30A DC 30V AC 250V for PLC Automation Control, Industrial System Control(24V, 8-Channel)

I ordered wrong part for a project coming up. Then I realized it 12vdc and I meant to order 5vdc. This is a good product and have used their products before. Due to time limits this is the only way I can contact the seller!

This is a "heavy duty" relay kit. Very solid. 3.2V friendly, this means you can trigger the ON/OFF using a 3.2V IoT device. The High-level trigger works as advertised. I am designing a home thermostat, for the thermostat 24V AC this relay kit is a little too much, still I love it.

Works great. I used this to switch 110 volt lights on and off with a Arduino UNO for a Halloween display, it probably cycled hundreds of times in the course of the evening without a problem.

I used this with my Arduino to make an induction furnace where I needed a big relay for the current I'm drawing through it. It failed at half the current rating.

it works. but the board was poorly soldered. had to clean up quite a few of the joints and give it a good alc bath to remove all the flux residue left behind from the manufacturing process.

good and happy with it

works

Thing is solid so far and easy to implement.Only complaint I have is that the output connectors are a bit small, but still fit 14AWG wire, so not enough to remove a star.