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, the light bulb will activate at dusk and off at dawn thanks to a built-in photocell sensor. This feature not only adds to your energy savings but also eliminates the hassle of manually operating the lights at night. Switching to Motion Detection mode, automatic sensors turn the light on when movement is detected from up to 19 ft. away. Motion detection mode is great for outdoor use as a preventative measure against trespassers or indoor as a convenient hands-free way to light up a space as you walk by. This light's LED technology puts out an ultrabright 5000 lumens using just 45 watts - up to 85% better than equivalent 300-watt incandescent bulbs. Corn Cob LED bulbs have an average life of 25,000 hours/22.8 years, are ROHS compliant, and are 100% Mercury-free. Each bulb comes with a mogul base adapter to easily upgrade HID non-ballast fixtures to LED. Choose a dependable LED bulb that fits your specific needs with motion detection or dusk to dawn features, or simply bright light that lasts decades.