The GAMA SONIC 12-Watt Waterproof Solar Area Light is an energy efficient lighting solution intended to brightly illuminate the exterior of any warehouse facility, storage unit, pedestrian area, off-grid remote location, or campground. Tempered glass solar panel for years of efficient charging. TWO TYPES OF OPERATION. Auto-on at dusk, or motion sensing with PIR (infrared sensor). Great addition to residential and commercial solar led lights. DUSK-TO-DAWN OPERATION. Bright-white (6000K) 56 LEDs with a constant brightness of 500 Lumens for 4-hours, then 100 Lumens. After 4 hours, motion will trigger 500 Lumens brightness. PIR MOTION SENSOR ACTIVIATION MODE. LED Solar Area Light will illuminate at 1620 Lumens for up to 150 cycles per night for 60-second intervals when motion is detected within the 140-degree detection zone. EASY TO SET TIMER. Using the timer dial, choose between an operation time of 4-hours, 5-hours, 6-hours, 7-hours or 8-hours or set to 0 for dusk to dawn operation