This LED motion sensor light has a single light head that rotates both at the base and at the knuckle, allowing you to aim the light where you need it most. Powerful LEDs emit 1,660 lumens and 90 lumens per watt of daylight white illumination while only consuming 20 watts of power. It operates on 120 VAC and includes a bracket, foam mounting gasket, and installation hardware for junction box mounting. The light features a sliding switch which allows users to choose between auto, dusk-to-dawn, and on-time operating modes. Auto mode uses the unit's PIR (passive-infrared) sensor to activate the light head when motion is detected. In this mode, you can customize lux (daylight level when lights will activate), on-time, and detection range (up to 70') with built-in dials. Dusk-to-dawn mode powers the lights on at dusk and off at dawn. On-time mode allows the lights to remain on constantly. The weatherproof LED safety light is constructed of a durable white aluminum alloy housing and poly-carbonate lenses.