Surface-mount LED technology makes the maxsa innovations motion-activated solar LED security flood light (black) are great for lighting up your deck, yard, porch, pool areas around a house, shed or business. It automatically turns on when motion is detected after dusk, and 16 surface-mount LEDs produce over 878 lumens of super-bright light. Durable weatherproof housing protects the solar panel in all weather conditions. This light is fully programmable to suit your needs. Set the duration of the illumination from 10 seconds to 1 minute. The motion and light sensitivities can also be adjusted by simply turning the knobs.