![](http://www.alamy.com/thumbs/6/E9EA830B-DF5C-4BE3-BF8F-919646D25E04/2PJARWN.jpg)
old light bulb on orange background
Size: 6000px × 4000px
Location: Ukraine
Photo credit: © Виктория Котлярчук / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: alternative, background, bright, bulb, clean, close, compact, conservation, eco, ecology, economic, economical, economy, efficiency, efficient, electric, electricity, energy, environment, environmental, equipment, glass, idea, incandescent, innovation, invention, isolated, kilowatt, lamp, light, linen, lit, luminosity, modern, object, orange, power, save, saver, savings, solution, spiral, technology, tube, turn, watt, изолированно