COMPACT FLUORESCENT LAMPS ORDERING CODE DESCRIPTION BASE AVG. LIFE PLUG-TYPE COMPACT FLUORESCENTS SINGLE TWIN TUBE LAMPS SL5S/827 PL-S 5W/27 G23 10,000 hrs. SL5S/841 PL-S 5W/41 G23 10,000 hrs. SL7S/827 PL-S 7W/27 G23 10,000 hrs. SL7S/835 PL-S 7W/35 G23 10,000 hrs….