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wood prints lamp wood prints bulb wood prints color wood prints colorized wood prints false color wood prints filament wood prints halogen wood prints light wood prints light bulb wood prints lighting wood prints micrograph wood prints sem wood prints tungsten wood prints

photographs lamp photos bulb photos color photos colorized photos false color photos filament photos halogen photos light photos light bulb photos lighting photos micrograph photos sem photos tungsten photos

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Color-enhanced SEM of a tungsten filament from a halogen lamp. Incandescent tungsten wire is used because it can be heated very strongly without melting. Halogen lamps light up at a temperature of about 3100 degrees Kelvin (3473° C). The melting point of tungsten is 3695° K (3422° C). The bright spots in the glass are fused tungsten which condensed on the inner wall of the glass bulb during normal operation of the lamp. Magnification 24001 (at 15x12 cm image size).