... night.Working by slightly touching the panel and the a delay time leaving of a person .With power saving, no contacting, no spark ... :AC180-250V 50HZpowerenergy saving lamp,fluorescent lamp,LED lamp≤80W, filament lamp≤200Wconnection:four-wire system,inductivesize:86*86*30mm quiescent ... is one year (not including the improper use of a human). Any quality problems within a year, you can call us for free ...