Shelly 2L Gen3

The Shelly 2L Gen3 is a retrofit smart switch designed to deliver precise lighting control without requiring a neutral wire. It connects easily to other Shelly devices or the free Shelly mobile app via Bluetooth or Wi-Fi, enabling simple, intuitive smart lighting management. Installation takes less than 10 minutes.

£30.98 inc VAT

SKU: 2L-GEN3 Category:

Compatibility

Shelly 2L Gen3 is compatible with the following systems:
Wi-Fi Compatible Device

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Description

The Shelly 2L Gen3 is engineered to control two independent lighting circuits at the same time, operating across two channels without the need for a neutral wire which makes it compatible with a wide variety of smart lighting setups. Its compact design allows it to be easily installed into standard electrical boxes, supporting loads of up to 200W on output 1 and 700W on output 2. The package also includes a Shelly Bypass for 1L/2L systems; when connected in parallel with the load on output 1, it eliminates the need for a minimum load requirement.

Unlike many smart lighting relays, the SHELLY‑2L‑GEN3 doesn’t rely on a dedicated hub or controller. Instead, it connects directly via Bluetooth or 2.4GHz WiFi. You can operate it through the free Shelly app, use it within automated scenes and schedules involving other Shelly devices, or take advantage of advanced features such as scripting, HTTPS, MQTTS, inbound and outbound WebSockets, and KNXnet integration.

Key features:

  • Built-in WiFi; no hub required
  • Bluetooth connectivity
  • Embedded web server for local management
  • 2 channel switch, 16A each
  • Flexible input control
  • Dimming functionality
  • Smart schedules
  • Smart scenes
  • Automatic sunrise/sunset schedules
  • Automatic on/off timer
  • Enhanced fire safety
  • Enhanced security (MQTT, WSS and TLS certificate support)

What’s included:

  • 1 x 2L-GEN3
  • 1 x Shelly bypass for 1L/2L
  • 1 x Installation guide

Manuals & Data sheets:

Product Specifications

Physical and Performance Attributes

Weight28 grams
Dimensions (L x W x H)37 × 42 × 16 mm

Misc Product Attributes

Category Specification Value
Physical Size (HxWxD) 37×42×16 ±0.5 mm / 1.46×1.65×0.63 ±0.02 in
Weight 28 g / 1 oz
Screw terminals max torque 0.4 Nm / 3.5 lbin
Conductor cross section 0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, bootlace ferrules)
Conductor stripped length 6 to 7 mm / 0.24 to 0.24 in
Mounting In-wall
Shell material / color Plastic / Cyan (terminals: Black)
Environmental Ambient working temperature -20 °C to 40 °C / -5 °F to 105 °F
Storage temperature 10 °C to 40 °C
Humidity 30% to 70% RH
Max. altitude 2000 m / 6562 ft
Electrical Power supply 220–240 V~, 50 Hz (Shelly Bypass required for load at O1)
Shelly Bypass included Yes
Power consumption < 1.2 W
Neutral not needed Yes (Bypass required for load at O1)
Min. load without neutral / without Bypass No (Bypass required for O1 LED loads). Not needed for incandescent.
Max. switching voltage 240 V~
Output circuits ratings Max. switching power O1 200 W
Max. switching power O2 700 W
Sensors Internal temperature sensor Yes
Wi‑Fi Protocol 802.11 b/g/n
RF band 2401–2495 MHz
Max RF power < 20 dBm
Range Up to 30 m / 100 ft indoors; 50 m / 160 ft outdoors (depends on conditions)
Bluetooth Protocol 4.2
RF band 2400–2483.5 MHz
Max RF power < 4 dBm
Range Up to 10 m / 33 ft indoors; 30 m / 100 ft outdoors (depends on conditions)
Microcontroller Unit CPU ESP-Shelly-C38F
Clock frequency 160 MHz
RAM 512 KB
Flash 8 MB
Firmware Schedules 20
Webhooks 20 (5 URLs per hook)
Scripting Yes
MQTT Yes