... incandescent lamp,energy-saving lamp, fluorescent lamp Tungsten filament(Energy-Saving Lamp,lamp filament) , made by qualifed tungsten wire, are widely used in general incandescent lamp, energy-saving lamp, fluorescent lamp, auto lamp, halogen lamp and ... ) Main-supplementary coil: 110V-250V Features:1) Uniformity in pitch, shape, color, luster and piece weight2) High lighting efficiency3) Long life4 ...