Signify LCT003

Hue White and Color Ambiance Spot GU10

Device type

Light

Max power

6.19 W

Standby power

0.25 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 Signify → LCT003.

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: signify
      model: LCT003

Library sensor documentation

Community usage

149 opted-in installations

2.84% of 5,246 reporting installationsOpt in to analytics

Device

Manufacturer: Signify
Color modes: Color temperatureHue and saturation
Aliases: 8718696485880
Socket: GU10
Form factor: Spot
Connectivity: Zigbee
Barcode: 8718696485880

Power

Power range: 1 – 6.19 W
Rated power: 6.5 W claimed
Light output: 250 lm · 40 lm/W

Measurement

Calculation strategy: LUT
Measure device: Shelly Plug S
Measure method: Script
Measure description: Used script utils/measure_shelly.py from repository
LUT curve quality: 92.1 · Good
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, 1:02 PM UTC

Library

Created: Jun 11, 2021, 10:01 PM UTC
Updated: Aug 31, 2026, 12:33 PM UTC
Contributors: Bram Gerritsen
Discovery: Automatic, by entity

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Signify LCT003

Hue White and Color Ambiance Spot GU10

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

Hue White and Color Ambiance Spot GU10

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)