Clear A15 shape ceiling fan bulb 40W (watt) 120V (volt) with intermediate E17 base, MOL (length) 3-3/8", instant on, fully dimmable to 0%, no ultraviolet/no infrared - safe for artwork, 100% mercury free. Made especially for ceiling fan lights with a multi-filament supports and a thicker filament that resists vibration, nickel plated brass base. Bulb life 2500 hours.