This C5000/5KDDMM/LEDHDRP dual function corn cob-shaped LED light bulb from Feit Electric provides maximum illumination for large rooms, barns, or anywhere you need more light. You have the option to set Dusk to Dawn or Motion Detection mode. For Dusk to Dawn mode, light bulb will activate at dusk and off at dawn thanks to a built-in photo cell sensor, which adds to overall energy savings. Switching over to Motion Detection mode, automatic sensors turn the light on when motion is detected from up to 19 ft. away. Great for outdoor use as a preventative measure against trespassers or indoor as a handy hands-free way to light up a space as you walk by. LED technology puts out and ultrabright 5000 Lumens using just 38-Watt - up to 87% better than equivalent 300-Watt incandescent. These bulbs have an average life of 35000 hours/32 years, are ROHS compliant and 100% Mercury-free.