Specification: Voltage:AC180-230 V Wattage:60W (incandescent lamp), 40W (LED light) Detecting range:3-5 M Delay time:45-60 S Ideal Light Switch for use around bathroom, hallways, staircases & porches. Installation: Shut off the power, load must not short-circuit Remark: Day:when the light is bright, the switch will not turn on with the sound Night:it must have sound to turn it on Package included:1*sound sensor light switch