At first glance, I couldn't tell what the little green box from Shelly was. It clearly has places for wires, but I had trouble picturing what would fit in the small compartment. As it turns out, it's a smart switch -- kind of. It's a smart home product mostly meant for DIYers, but installation seems simple enough that even I could give it a try.
The Shelly Dimmer fits inside your wall. Most of the smart switches we've reviewed are either plugs that need to be plugged in themselves or actual in-wall switches you install instead of your current switches. The Shelly Dimmer fits between the wires to your current wall switch and the switch itself. It's a smart home gadget that stays entirely out of sight, and the petite size helps it fit into cramped spaces.
Shelly's Dimmer connects to Wi-Fi and uses another of other signal protocols, each of them open for tinkering. The company already offers a number of smart products, including a couple of similar boxes that fit behind your wall switches.
The new Shelly Dimmer is debuting atand is the smallest of the bunch. It's nicely affordable at $20, and while you can control your switch and dim your lights with the Shelly app, it also works with major smart home platforms like Amazon's and .
The company is also debuting a door sensor at IFA. The whole lineup looks appealing if you want affordable smart gadgets that blend in and work with your existing smart home. I'd be a little sad after installing the Shelly Dimmer out of sight, though, as it's small enough to be a little cute.