long life filament for lamp 1.Material: tungsten 2,Purity: >= 99.95% 3.Density: 19. ... 61Stranded Tungsten Wire Application: For making filaments for auto lamps, fluorescent lamps, high pressure halogen lamps. For making other lamp components. ... incandescent lamp, fluorescent lamp, halogen lamp, auto lamp and hi-color temperature lamps,etc. For making supports and electron tubes Stranded tungsten wire ...