half spiral energy saving lamp 2,100% Tir phosphor 3,Real power:>85% 4,Lifetime: ... ~10,000hrs 5,CE,(EMC ,LVD)ROHS,SAA,TUV, half spiral energy saving lampApplicationHome,hotel,restaurant,office,meeting room,shops and ... market It was designed to preheat the filament prior to lamp ignition in order to extend the lifetime of tube.After ...