... Sensor light, fit for use in bedroom hallway,staircase ,etc. 2) Not work on the day time, 3) Autolight Led sensor Light/ PIR ... sensor light1) led quantity: 4 pcs of super led brightness,each led is 14000mcd-15000mcd 2) Material ... 30 seconds.when you turn on the lights,or ambient light changes,the products will continue to light up 30s. PIR sensor led light