Shelly 1L without neutral on a two-way switch
Not every box has a neutral. The Shelly 1L Gen3 needs only live and the switched wire and draws its power through the lamp.
Two-way with junction box → Shelly 1L (no N) 3 steps in 1 box
Work out the plan for your boxes ▶
Different cables, swapped colours, more switches? The calculator takes over this setup and you adjust it.
⚡ Work on fixed electrical installations belongs in the hands of a qualified electrician. Take the plan to yours. Safety notes
More about this change
As with the Shelly with neutral, both switches stay. The switched wire goes to SW, the output O to the lamp.
What to watch out for
- Low-power LED lamps may flicker or glow when off. The Shelly Bypass, wired in parallel to the lamp, fixes that.
- If there is a neutral in the box after all, the Shelly 1 Mini with neutral is the more robust choice.
What you need
- 1× Shelly 1L Gen3
- 1× Shelly Bypass
- 1× Wago 221-413 (3-way)