Closeup photo of glowing element in the small light bulb, showing hot wire glow by electric current flowing in the tungsten filament.

Closeup photo of glowing element in the small light bulb, showing hot wire glow by electric current flowing in the tungsten filament.

Photo by rockford

Royalties free, Commercial & Editorial use

Size: 6076 x 6366 px
File format: JPG

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Stock photo: Closeup photo of glowing element in the small light bulb, showing hot wire glow by electric current flowing in the tungsten filament. was taken by rockford .