... . Filament(Tungsten Filament,lamp parts) can be used in Incandescent Lamp, fluorescent lamp,anti-shock lamp,energy-saving lamp, auto lamp, halogen lamp and other special lamps ... :1) Single-coil: 36V-250V, 1,000-5,000 hours2) Double-coil: 110V-250V, 1,000-5,000 hoursFeatures:1) Uniformity ... weight: ±3%mg5) Cold resistance: ±3%ohm Tungsten Filament as for lamp accessories