2 Channels 5V Relay Module

Took me ten minutes to wire this into my Arduino project, and the NC ports make it dead simple to switch between off and on states without any cross-talk. The 5V input works straight off the board's regulator, so no extra power headache. Two relays in this little package is exactly what I needed for

Swapped out the bulky setup in my garage door controller for this little 5V module and the NC ports made wiring the fail-safe a breeze. It's been running 24/7 for two weeks without a single hiccup, and the optoisolation keeps my Arduino safe from any power spikes. Honestly, for the price of a coffee

These little boards are perfect for my Arduino projects, the 5V logic level means I don't need any extra components to switch my 12V loads. Both relay channels clicked on cleanly when I tested them, so I'm grabbing a few more for the next build.