YouLess LS120

P1 Energy Monitor

Device type

Generic IoT

Max power

1.18 W

View discovery and setup instructions for this profile.

Powercalc can discover this model automatically (by config_entry). 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 YouLess → LS120.

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: youless
      model: LS120

Library sensor documentation

Community usage

8 opted-in installations

0.15% of 5,314 reporting installationsOpt in to analytics

Device

Manufacturer: YouLess
Connectivity: Ethernet
Barcode: 4260224172426
Product page: youless.nl

Power

Power range: 1.18 – 1.18 W
Rated power: 0.8 W claimed

Measurement

Calculation strategy: Fixed
Measure device: Zhurui PR10
Measure method: Manual
Measure description: Measure average for 10 minutes
Mains voltage: 230 V

Library

Created: Aug 14, 2026, 3:20 PM UTC
Updated: Sep 13, 2026, 9:41 AM UTC
Contributors: Bram Gerritsen
Min version: v1.24.0
Discovery: Automatic, by config_entry

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YouLess LS120

P1 Energy Monitor

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

P1 Energy Monitor

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)