LEDVANCE AC74759

SMART+ Classic B40 E14 RGBW

Device type

Light

Max power

4.68 W

Standby power

0.14 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 LEDVANCE → AC74759.

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: ledvance
      model: AC74759

Library sensor documentation

Community usage

2 opted-in installations

0.04% of 5,246 reporting installationsOpt in to analytics

Device

Manufacturer: LEDVANCE
Color modes: Color temperatureHue and saturation
Aliases: SMART MAT B40 RGBW 827 FR E14
+1 more
Socket: E14
Form factor: Candle
Connectivity: Matter, Wi-Fi
Barcode: 4099854461330
Product page: ledvance.com

Power

Power range: 0.35 – 4.68 W
Rated power: 4.9 W claimed
Light output: 470 lm · 100 lm/W

Measurement

Calculation strategy: LUT
Measure device: Shelly Plug S Gen3
Measure method: Script
Measure description: Measured with utils/measure script using 2 identical lamps in parallel (MULTIPLE_LIGHTS=true, NUM_LIGHTS=2), reported values are per lamp, because a single E14 lamp draws below the Shelly Plug S Gen3's 0.1 W resolution. A preheated resistive dummy load (~8.5 W, thermally settled) was connected in parallel and its calibrated baseline subtracted: without it the hs sweep aborted on repeated 0 W readings at low brightness with saturated colors, where both lamps combined draw under 0.1 W. The lamp is multicolor (supported_color_modes: color_temp, hs), both modes were measured. Brightness starts at 2. At the darkest, most saturated hs points the per-lamp figure is coarse, limited by the meter resolution, but the absolute error there is well under 0.1 W. Matter device via the Matter integration.
LUT curve quality: 98.2 · Excellent
Curve smoothness on a 0–100 scale. This is not an accuracy percentage.
How this score works
Voltage range: 231.6 – 237.1 V
Mains voltage: 230 V
Measurements updated: Aug 28, 2026, 8:14 AM UTC
Measure settings: SAMPLE_COUNT: 3SLEEP_TIME: 3VERSION: v0.4.1:cli

Library

Created: Aug 26, 2026, 10:26 AM UTC
Updated: Aug 31, 2026, 12:33 PM UTC
Contributors: philscottydev
Discovery: Automatic, by entity

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LEDVANCE AC74759

SMART+ Classic B40 E14 RGBW

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

SMART+ Classic B40 E14 RGBW

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)