IKEA LED1837R5

TRADFRI bulb GU10 WW 400lm

Device type

Light

Max power

5.37 W

Standby power

0.21 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 IKEA → LED1837R5.

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: ikea
      model: LED1837R5

Library sensor documentation

Community usage

100 opted-in installations

1.88% of 5,314 reporting installationsOpt in to analytics

Device

Manufacturer: IKEA
Color modes: Brightness
Aliases: TRADFRI bulb GU10 WW 400lm
Socket: GU10
Form factor: Bulb
Connectivity: Zigbee

Power

Power range: 0.36 – 5.37 W
Rated power: 5 W claimed
Light output: 400 lm · 74 lm/W

Measurement

Calculation strategy: LUT
Measure device: Shelly 1PM
Measure method: Script
Measure description: Measured with utils/measure script
LUT curve quality: 98.3 · Excellent
Curve smoothness on a 0–100 scale. This is not an accuracy percentage.
How this score works
Mains voltage: 230 V
Measurements updated: May 3, 2024, 7:11 AM UTC
Measure settings: SAMPLE_COUNT: 1SLEEP_TIME: 2VERSION: v0.13.4

Library

Created: Sep 14, 2021, 11:38 AM UTC
Updated: Aug 31, 2026, 12:33 PM UTC
Contributors: Magnus Øverli
Discovery: Automatic, by entity

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IKEA LED1837R5

TRADFRI bulb GU10 WW 400lm

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

TRADFRI bulb GU10 WW 400lm

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)