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A halogen lamp operating in its fitting with the protecting glass removed
A halogen lamp operating in its fitting with the protecting glass removed
A halogen lamp behind a round UV filter. A separate filter is included with some halogen light fixtures to remove UV light.
A halogen lamp behind a round UV filter. A separate filter is included with some halogen light fixtures to remove UV light.
A close-up of a halogen lamp capsule
A close-up of a halogen lamp capsule
A burned-out R7S form factor halogen lamp
A burned-out R7S form factor halogen lamp
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A scanning electron microscope image of the tungsten filament of an incandescent light bulb
A scanning electron microscope image of the tungsten filament of an incandescent light bulb
Elaborate light in Denver, Colorado
Elaborate light in Denver, Colorado
Original carbon-filament bulb from Thomas Edison's shop in Menlo Park
Original carbon-filament bulb from Thomas Edison's shop in Menlo Park
Alexander Lodygin on 1951 Soviet postal stamp
Alexander Lodygin on 1951 Soviet postal stamp