Incorrect Brightness/Color Temp Control and Unknown Power Entity for Aqara Ceiling Lamp T1 (lumi.light.acn031)

[nanshanteahouse]

Device Information

• Model: Aqara 幻彩吸顶灯T1 Aqara Ceiling Lamp T1 (HCXDD11LM)
• Model ID: lumi.light.acn031
• Device Type: Dual-light source (Main light: Bi-color/CCT; Sub-light: RGB ambient strip)

Description of Issues

1. Brightness Adjustment Cap (Scaling Issue)
When adjusting the brightness for both the main and sub-lights via the Home Assistant UI, the value is capped at 39%.

• Observation: It appears there is a scaling error between the 0–255 range and the 0–100% range ($100/255 \approx 0.39$).
• Note: When the brightness is adjusted via the official Aqara app, the Home Assistant UI correctly reflects the full range (0–100%). However, manual control within HA remains restricted.

2. Sub-light Color Control (Incorrect Schema)
The sub-light (RGB ambient strip) incorrectly displays a Color Temperature (CCT) slider in the UI instead of an RGB/Color picker. It should be identified as an RGB light source rather than a bi-color light.

3. Unknown Power Entity
The Aqara Ceiling Lamp T1 Power entity consistently shows an Unknown state.

• If this hardware supports power monitoring, please look into fixing the data reporting.
• If the hardware does not support power monitoring, I suggest hiding this entity by default to avoid confusion.