Advanced Dusk to Dawn Sensor: VIANIS outdoor wall light fixture has an automatic night sensor. The light comes on when it becomes fully dark and turns off when the sky brightens. The dusk to dawn outdoor sconces wall lighting will help prevent wasting electricity throughout the day if we forget to turn off the switch. Free your hands and save electricity. Stunning Crystal Bubble Glass: The unique solid glass cylinder inserts with champagne bubbles light up beautifully. The exterior light fixture is equipped with a 10-watt integrated LED that produces 3000K of warm light.