Sustainable source

Light bulb

Single bulb

Food source

Sustainable food source

Energy source

Artistic portrayal

Old fashioned

Power source

Source of light

Beauty in simplicity

Gray background

Textured background

Simple elegance

Human ingenuity

Single source

Gray backdrop

Everyday object

Incandescent bulb

Electric bulb

Bright idea

Essence of light

Single incandescent bulb

Single lightbulb

Filament bulb

Clear globe