about lohas dusk to dawn sensor green led light bulb dusk till dawn sensor led bulbs are particularly useful for outside/indoors lights when youre away from your house on vacation or you are gone overnight--they come on/shut off automatically, enhancing physical security.convenient you dont have to think about turning the porch lights on at night anymore! no more running down the stairs to turn on outdoor lights! you dont have to remember to turn lights off in the morning anymore!energy saving they go on at dusk and off at dawn, which means some savings on electric bill.applications: garden, porch, hallway, pavement, front door, garage, yard, warehouse, driveway, kitchen, stairways, attics, pole lamp, outdoor sconce lights, etc.specifications: package: 4 pieces wattage: 6w(40w equivalent) color: Green material: aluminum&plastic lamp style: a19 shape base: e26 medium screw base beam angle: 240 degree lifespan: 20000 hoursabout lohas led our company is lohas led lighting factory, established in 2003, over 10 years we provided the worldwide customers for quality led lights, around 100 countries and areas. our business philosophy is to provide the perfect energy-saving led lights for our customers! we would be your best choice!