GE Lighting F49/T5/840/GE/WATT-MISER/SL 1-30 49W T5 Watt-Miser fluorescent lamp with 16mm outer diameter for indoor applications. This new lamp offers significant energy savings versus other T5 linear fluorescent lamps. Standard T5 lamp can be easily replaced with the new T5 Watt-Miser lamp in the existing lighting applications, since new electronic control gears are not required. It is suitable for retail, offices, schools, commercial and industrial applications.