Feit Electric F15T8/CW 15W Cool White 18" Fluorescent T8 Tube G13 Bi-Pin Base Replacement fluorescent tube for under cabinet or closet lighting T8 miniature tube with G13 bi-pin base Color temperature 4100K MOL (length) 17 13/16", diameter 25mm or 1". No ultraviolet/no infrared - safe for artwork