male hands compare an incandescent light bulb and a led lamp - energy efficient lightbulb stock-fotos und bilder
glühbirne icons - acme-serie - energy efficient lightbulb stock-grafiken, -clipart, -cartoons und -symbole
energiesparer glühbirne leuchtet auf grünem hintergrund - energy efficient lightbulb stock-fotos und bilder
woman replacing light bulb with energy efficient light bulb - energy efficient lightbulb stock-fotos und bilder
glühbirne mit spiralfaden. symbolaufkleber auf grauem hintergrund - energy efficient lightbulb stock-grafiken, -clipart, -cartoons und -symbole
beleuchtung dünne linie symbole - editierbarer strich - symbole umfassen glühbirnen, kompaktleuchtstofflampen, led-glühbirne, glühbirne, wandleuchte, lampe, pendelleuchte, licht - energy efficient lightbulb stock-grafiken, -clipart, -cartoons und -symbole
mutter und kinder sparen energie durch lampenwechsel - energy efficient lightbulb stock-fotos und bilder
mid adult woman pointing at electric bulb, smiling, portrait - energy efficient lightbulb stock-fotos und bilder
energie effiziente glühbirne wohnung umwelt designikone - energy efficient lightbulb stock-grafiken, -clipart, -cartoons und -symbole
3 colored led bulbs lit inside presentation boxes - energy efficient lightbulb stock-fotos und bilder
illuminated light bulb against pink, purple and blue background - energy efficient lightbulb stock-fotos und bilder
businesswoman and businessman comparing regular and energy-saving lightbulb - energy efficient lightbulb stock-fotos und bilder
sparangebote mit effizientem kompakte fluoreszierend glühbirne - energy efficient lightbulb stock-fotos und bilder
group of scattered light bulbs with one uniquely switched on and illuminating the space - energy efficient lightbulb stock-fotos und bilder
smartphone with smart home control functions in hands - energy efficient lightbulb stock-fotos und bilder
woman using tablet with smart home control functions at home - energy efficient lightbulb stock-fotos und bilder
lampe, kompaktleuchtstoff- und unter der leitung - energy efficient lightbulb stock-grafiken, -clipart, -cartoons und -symbole
fluoreszierend und led glühbirne oberfläche symbole auf weißem hintergrund - energy efficient lightbulb stock-grafiken, -clipart, -cartoons und -symbole
usa, new jersey, jersey city, boy (4-5) touching energy efficient lightbulb - energy efficient lightbulb stock-fotos und bilder
young woman with wind turbine powered bulb at dusk - energy efficient lightbulb stock-fotos und bilder
woman changing light bulb to energy efficient bulb - energy efficient lightbulb stock-fotos und bilder
directly below shot of illuminated light bulbs hanging from ceiling - energy efficient lightbulb stock-fotos und bilder
selective focus solar cell panel making clean energy for agriculture for tropical fruit farming - energy efficient lightbulb stock-fotos und bilder
germany, munich, woman holding electric cord and lightbulb in solar energy, smiling, portrait - energy efficient lightbulb stock-fotos und bilder
germany, munich, woman holding electric cord and lightbulb in solar energy, smiling, portrait - energy efficient lightbulb stock-fotos und bilder
close up hand change to led bulb in home. concept for home improvement and green house. - energy efficient lightbulb stock-fotos und bilder
lighting power from sustainable energy resource collection ,net zero concept photo - energy efficient lightbulb stock-fotos und bilder