Design House 588095 Internal Mount 120-Volt Outdoor Photocontrol, The Design House 120-Volt Internal Mount Photocontrol saves on energy costs by automatically activating your outdoor lights to turn on when it gets dark at night and shut off when daylight comes. Designed for residential or commercial applications, this light control is perfect for home security lighting, parking lots, landscape lighting, pedestrian pathways and other outdoor uses. Compatible with LED, incandescent, and high-intensity discharge (HID) lights. This internal mount light sensor with photocell is commonly used for exterior lighting purposes such as building perimeters, street lighting, parking lots, outdoor signs, landscape lighting and more Installs on standard outdoor light fixtures or electrical boxes for efficient dusk-to-dawn ON/OFF control; 3/8 in. threaded stem with locking nut and rubber gasket Time delay feature of 30-120 seconds prevents unwanted Off switching due to light from passing vehicles Compatible with LED, incandescent, and high-intensity discharge (HID) lights Outdoor operating temperature range of -40F to 140F (or -40C to 60C)