Old vs. new lightbulb technology.
Square
Size: 5101px × 5100px
Photo credit: © Mike Kemp / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: ., air, bulb, clean, conservation, electricity, energy, environment, green, horizontal, light, lightbulb, objects, pair, people, photography, power, preservation, square, technology.
