... , bathroom, washroom, kitchen, veranda, stair well and park etc. 1)Special Featuresa) Light sensor function: auto identify the environment illuminance,and working after ... detection area. 1) 1-10s, 100% illuminance, 2) 10-40s, 10% illuminance, 3) After 40s. light off. d) Detection distance, sensitivity of light sensor, time ...