1. Core Features

• Human Body Sensing: Typically uses PIR (Passive Infrared) sensors or millimeter-wave radar to detect movement in front of the mirror, enabling automatic light on/off.

  • PIR Sensor: Cost-effective but may not detect static presence (e.g., lights may turn off during prolonged makeup sessions).

  • Millimeter-Wave Radar: Higher sensitivity, capable of detecting subtle movements (e.g., breathing), ideal for premium models.

• Ambient Light Sensor: Works with the motion sensor to activate only in low-light conditions, preventing unnecessary daytime activation.

2. Key Benefits

• Touch-Free Operation: Avoids smudges or water stains on the mirror surface.

• Energy Saving: Automatically turns off when no motion is detected, perfect for bathrooms or dressing rooms.

• Adjustable Delay: Some models allow setting a custom delay (e.g., 10 sec – 5 min) before turning off.

3. Common Use Cases

• Bathroom Mirror: Lights up automatically during showers, even in steamy conditions.

• Closet Mirror: Illuminates when the door opens for easier outfit selection.

• Smart Home Integration: Compatible models can sync with HomeKit, Mi Home, etc., enabling automation (e.g., turning on the exhaust fan when the mirror activates).

4. Buying Guide

• Waterproof Rating: Choose IPX4 or higher for bathroom use (splash-proof).

• Power Supply: Battery-operated (flexible installation) or wired (stable power).

• Additional Features: Some models include anti-fog, digital clock, Bluetooth speaker, etc.

• Installation: Check whether it requires wall mounting or supports adhesive installation.

5. Troubleshooting

• False Triggers: Adjust sensitivity or reposition the mirror (avoid placing near air vents).

• Nighttime Disturbance: Opt for models with soft nightlight to avoid harsh glare.

6. Recommended Models

• Entry-Level: Teruier T1 (PIR sensor, IPX4, budget-friendly).

• Premium: Teruier Pro (millimeter-wave radar, app control, anti-fog function).

Purchase through official channels and confirm warranty terms (e.g., waterproof coverage). Some sellers offer free video installation guides.