This item is well made of premium material for durable and practical use. It automatically turns on the light when a moving human body or heat source enter into its detection area, and turning off after a time delay. With ceiling mounted design, it can be used in corridor, toilets, stair hall, balcony, washroom, garage, etc. Feature - Color: White. - Material: Plastic. - Size: Approx. 12x7x4cm - Light source frequency: 50/60Hz - Delay time: 8 plusmn;3s - Detecting distance: 9M - Detecting angle: 180 - Working temperature: -20 - 40 Celsius degree. - Made of premium material for durable and practical use. - Combined intelligent control and energy saving. - Ceiling mounted, easy and convenient to use. - Human body infrared motion sensor, can be used in corridor, toilets, stair hall, balcony, washroom, garage, etc. - Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand Thank you