Linear Fluorescent Lamp Lamp Shape T8 Diameter 1 In. Length 48 In. Base Type Medium Bi-Pin (G13) Start Type Instant Lamp Designation F32T8/25W/SPP41/ECO 25 Watts Lamp Tone Cool Color Temp 4100K CRI 80 Initial Lumens 2500 Mean Lumens 2350 Average Life 45 000 hr. Min Starting Temp 60 Degrees F No Shatter-Resistant 2012 DOE LPW Regulation Meets New Minimum Efficiency General Purpose Energy Saving CEE Certified Yes