... 4.CE RoHS About Product: Half Spiral Circular Fluorescent Lamp With Ballast SpecificationsTypeHalf Spiral CFLOutput(W)18w,20w,23w,26w ... ,high lumen efficiency4) Long service life time5) Stable performance with high power output6) Plastic material: PBT plastic, which is ... Energy saving Lamps or, Compact Fluorescent Lamp Lamp shape like Spiral,U-shape,Lotus,Mushrooom,Reflector,Flower ,Global and so on ...