Triangle Bulbs FML27/EX-D, FML27/50 Reading Lamp Light Bulb, 5000K Natural Daylight Color, FML27EX/N, T50024 Energy efficient 27w compact fluorescent bulb 4-pin quad tube bulb. 5000 kelvin color temperature Gives natural daylight that is good for eyes, great for reading and giving a nice light to your house Replacement light bulb for the light of America desk lamp and floor lamp Equivalent to #9024b/fml-27-ex-d