Shelly Dimmer 2
£29.29
Shelly Dimmer 2 is a compact Wi-Fi dimmer for halogen lights, dimmable LEDs and ferromagnetic transformers, fitting behind a standard wall switch without needing a neutral wire. Note that it does not support constant-voltage LED drivers, so check your driver type before fitting.
- No neutral wire required for installation
- Dims halogen, dimmable LED and ferromagnetic transformer loads
- Compact 42 x 36 x 14mm, fits behind existing switches
- Constant-voltage LED drivers are not supported — check compatibility first
Buy the Shelly Dimmer 2 online in the UK from ShellyUK — genuine Shelly stock with fast UK delivery.
Control and dim a wide range of halogen lights, dimmable LED bulbs and ferromagnetic transformers from anywhere, with the world's smallest WiFi-operated dimmer. No neutral wire required!
*Constant-voltage drivers are not supported.
No neutral wire required for installation
Dims halogen, dimmable LED and ferromagnetic transformer loads

Compact 42 x 36 x 14mm, fits behind existing switches
Constant-voltage LED drivers are not supported — check compatibility first
Where you'd use it
No-neutral dimming retrofit
Fit it into a UK back box that only has a live and switched-live, common in older homes, and get proper dimming without pulling in a neutral wire.
Halogen and transformer-fed lighting
Control halogen downlights or lamps run through ferromagnetic transformers, which many cheaper dimmers can't handle cleanly.
Compact behind-switch install
Use its small footprint to squeeze the dimmer in behind an existing single-gang switch plate, keeping the wall face unchanged while adding remote and app dimming.
Specification
Connectivity
- Wireless/WiFi Protocol
- 802.11 b/g/n (2.4 GHz)
- Radio signal power
- 1mW
- Operational range (depending on local construction) • up to
- 50 m outdoors • up to 30 m indoors
Physical & Build
- (H x W x L)
- 42 x 36 x 14 mm
Power & Electrical
- Power Supply
- • 200 - 240V ±10, 50Hz AC • 110-240V ±10, 50/60Hz AC
- Electrical consumption < 1W
Other
- Can work without neutral wire
- Yes
- Complies with EU standards •RE Directive
- 2014/53/EU • LVD 2014/35/EU • EMC 2004/108/WE • RoHS2 2011/65/UE
- Working temperature
- 0°C to 35°C
- Frequency
- 2400 - 2484 MHz






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