Sylvania , 4008321027962 , L 18W/880 LUMILUX SKYWHITE , 18W T-8 G13 Medium Bi-Pin Base 24in 8000K 20,000 Hour Sky White Lumilux Dimmable Linear Tube Fluorescent Light Bulb - Applications: Public buildings, Office lighting, Industry, Shops, Supermarkets and department stores, Street lighting, Outdoor applications only in suitable luminaires