Factors that can interfere with motion sensor night lights: 1. Temperature fluctuations and heat sources 2. Air flow and swaying curtains 3. Electromagnetic interference 4. Light fluctuations 5. Sensitivity setting issues 6. Humidity and moisture 7. Animal interference
It depends on the area of the living room. Generally, a living room with an area of 20 to 30 square meters can be equipped with 1 to 2 motion sensor night lights for auxiliary lighting control; if the living room is large or requires zoned lighting, the number can be appropriately increased.