DC 12V Relay Module 8 Channel Relay Board with OPTO-Isolated High or Low Level Trigger

There is not much to say about this relay board, which is actually a good thing. I am using it as part of a custom clock project, and it works exactly as expected. The board was straightforward to integrate, the relays switch reliably, and everything has performed without any issues. Sometimes the best compliment you can give an electronic component is that it simply does its job and keeps working. If you need a dependable multi-channel relay module for a project, this one has worked perfectly for me.

These were low priced and worked perfectly for my project. I used this to take 12vdc mosfet driven outputs to contact closure to operate various low voltage loads. My only complaint is the screw terminals - they are a poorly cast (off-center) low quality phillips head screws that I was afraid would not stand up to frequently being tightened/loosened. My project was basically a one and done - so for my purposes it was fine.

Used it as an interface between a QSYS GPIO and a contact closure display lift control. Sixteen display lifts grouped into six channels. Bought this 8 channel unit. Unit worked perfectly. Has a convenient LED to indicate power and then each relay has an LED to indicate if it's actuated. You can trigger off of a high signal or low, and the relays offer both normally open and normally closed connections. Will buy again.

strong clicks even with low current signal wires. Signal inputs of 3.7v, 5v, and 12v working. Make sure the DC in voltage for the board is at the expected 12v. Whats cool about these relays if you connect the hot 12v of a switch into one of the inputs, then set jumper to LOW for that relay... whenever that switch is activated and the circuit is complete, so will the relay.

this was perfect, highly sensitive on the input, which is what I was looking for, and the relays make a solid connection.

Works like a champ, after I re soldered a leg on the optoisolator for relay 1. Works perfectly for my microcontroller. 5 stars because I'm back up and running on my automated house controls.

This item works okay, well 75% of it. I had a few channels that had issues. One of the opto couplers went soldered completely, one transistor died after 6 cycles and the last one had a faulty relay. Otherwise the remaining channels worked well!

the solder job on this board arrived with no only pins that were electrically connected but also not even a complete reflow of other pins