Shelly Bypass – No-Neutral Module for Shelly 1L and Dimmer 2, 110-240V AC

Operating without a neutral wire, the Shelly Bypass solves one of the most common challenges in smart home retrofits. This compact module connects in parallel to the load, ensuring your Shelly 1L or Dimmer 2 receives sufficient current even when no neutral conductor is present. Perfect for older buildings and renovation projects, it enables reliable switching and dimming of low-power LED lights.

Overview

The Shelly Bypass is an electrical bypass module engineered to unlock the full potential of Shelly 1L and Dimmer 2 devices in wiring setups where a neutral wire is simply not available. By connecting in parallel to the load, it maintains a clean installation in standard in-wall boxes while enabling robust, reliable smart lighting control. With a minimal standby power consumption below 1W, it is an energy-efficient accessory that meets CE and RoHS certifications for safety and durability.

What stands out

• Operates without a neutral wire – ideal for older buildings and renovation projects.
• Compatible with both Shelly 1L and Dimmer 2, offering flexibility across your smart home setup.
• Minimal standby power consumption below 1W, ensuring energy efficiency.
• Built for safety and durability with CE and RoHS certifications.

Technical details

• Operating voltage: 110-240V AC, 50/60Hz
• Minimum load requirement: 10W (for Shelly 1L/Dimmer 2 without neutral)
• Connectivity: Hardwired, parallel to load
• Power consumption: <1W
• Operating temperature: -20°C to 40°C
• Housing material: Plastic (white/grey)
• Mounting: In-wall box

Our verdict

The Shelly Bypass is an essential companion for any Shelly 1L or Dimmer 2 installation without a neutral wire. Its compact design and low power draw make it a reliable and energy-efficient solution for smart lighting control in older homes.