You can see both installation schematics below:Įagle-eyed readers will notice that Shelly 1L supports 2 switches. As the average LED bulb uses 8-10W of power, unless you are automating lights with 2-3 bulbs, the bypass add-on will be mandatory.īypass isn’t expensive, but the extra device will increase the complexity of the installation. bypass (€2.42) removes the limit of min 20W resistive load, but you will have to install it yourself to make the device work correctly.min 20W – to use the device as is, your load has to be at least 20W, otherwise, bypass (sold separately) is needed to make the Shelly 1L work with no-neutral circuit. ![]() While the L&N configuration is pretty straightforward, the no-neutral installation comes with additional limits: ![]() You can use the same device in the control boxes with no-neutral and live & neutral configurations. I mentioned, that Shelly 1L caters to both wiring standards. To bypass or not to bypass, that’s the question What’s nice to see is the assurance that Shelly 1L will work with pretty much any lights without causing interference or flicker: Minimum load – no neutral connected, without bypass That’s not the only change, there is more to learn before you can use Shelly 1L. Shelly 1L doesn’t come with the usual 10A load limit, the device can carry 4.1A safely, which is fine if you are automating lights, but it may not be enough for anything else. What pleases me even more, it comes with 7 terminals (something I complained about multiple times before). The general footprint is the same as the Shelly 2.5, but the connected relay feels lighter and it’s much slimmer. ![]() To the point where I started to suspect it was empty. Shelly sent to me another product to take a look at and unlike Shelly 1 ( review), Shelly 1PM ( review) or even Shelly 2.5 ( review) the box felt very small and light. You can sweeten up that deal by topping up my coffee tip jar. Full disclosure, I accepted a bribe from Shelly: one coffee mug, I write about these anyway, but I would look a little more tired than usual. What if there was a device that caters to both wall light switch wiring standards? Shelly 1L can connect no-neutral wall switches and the ones that come with live and neutral wire inside the in-wall console. The world is split by different electrical standards, as each country comes up with their own definition of what’s best for its citizens.
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