1,Tube diameter :T2,T3,T4,T5 2,100% Tir phosphor 3,Real power:>85 ... hot new CE & RoHS high quality 5U lotus lamp ApplicationHome,hotel,restaurant,office,meeting room,shops and supermarket1. ... .using 100% troposphere tube,4..up to 80% energy saving comparing with incandescent Bulbs5.8000hours long life and 1 ... was designed to preheat the filament prior to lamp ignition in order to extend the lifetime of ...