SONOFF B1

Smart Wi-Fi RGB LED Bulb

Device type

Light

Max power

5.25 W

Standby power

0.8 W

View discovery and setup instructions for this profile.

Powercalc can discover this model automatically (by entity). Look for a discovery prompt in Home Assistant and accept it to create the sensors. About discovery

Through the interface (recommended)

Start the Powercalc config flow, choose Virtual power (library), and pick SONOFF → B1.

Open in Home Assistant

Add this to your configuration.yaml, replacing light.my_light with your own entity.

powercalc:
  sensors:
    - entity_id: light.my_light
      manufacturer: sonoff
      model: B1

Library sensor documentation

Community usage

2 opted-in installations

0.04% of 5,314 reporting installationsOpt in to analytics

Device

Manufacturer: SONOFF
Color modes: Color temperatureHue and saturation
Aliases: sonoff-b1-e27-rgb
Socket: E27
Form factor: Bulb
Connectivity: Wi-Fi
Barcode: 6920075770322

Power

Power range: 0.7 – 5.25 W
Rated power: 6 W claimed
Light output: 600 lm · 114 lm/W

Measurement

Calculation strategy: LUT
Measure device: Shelly Plus 1PM
Measure method: Script
Measure description: Measured with utils/measure script
LUT curve quality: 95.6 · Excellent
Curve smoothness on a 0–100 scale. This is not an accuracy percentage.
How this score works
Mains voltage: 230 V
Measurements updated: Aug 29, 2026, 1:03 PM UTC
Measure settings: SAMPLE_COUNT: 2SLEEP_TIME: 3VERSION: v1.6.6:docker

Library

Created: Jun 20, 2023, 5:57 PM UTC
Updated: Sep 13, 2026, 9:41 AM UTC
Contributors: TyzzyT
Discovery: Automatic, by entity

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SONOFF B1

Smart Wi-Fi RGB LED Bulb

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

Smart Wi-Fi RGB LED Bulb

Set up manually instead

Through the interface .css-bxmwoh{margin:0;font-family:"Roboto","Helvetica","Arial",sans-serif;font-weight:400;font-size:0.875rem;line-height:1.43;letter-spacing:0.01071em;}(recommended)

Or configure with YAML

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

Through the interface (recommended)