LumenBasic E17 LED R39 Bulb Reflector Dimmable Pure Daylight White LED Bulb 3W Small Intermediate E17-2 Pack 3W LED E17 replaces 25-watt incandescent bulbs Reaches full brightness instantly Standard R39 shape with E17 Intermediate base, that can be easily fitted instead of ordinary R39 incandescent bulb Applicaiton for desk lamp, recessed ceiling light , and other light fixture. Use for Recessed Downlights, Track Lights, Cabinets, Desk Lamps and Display Lights