Royalty-Free Efficiency Photos, orientation: horizontal, minimum size: 2k
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3190x2239
white CFL LED bulb -
3088x2056
four assorted-color power plugs -
4200x1813
person holding blue base clock -
6000x4000
White Windmill during Cloudy Day -
3008x2000
White Windmill -
2800x1462
two LED bulbs -
4237x2825
person holding light bulb -
5472x3648
selective focus photography of turned on Edison bulb -
5184x3267
Windmill Energy on Green Grass Field -
4345x2444
wind turbines on green lawn grass under blue cloudy sky during daytime -
5000x3000
gray, blue, and red dartboard with three arrows -
5000x3000
selective focus photography of round gold stand decor -
6000x4000
White 3-blade Windmill Under Cloudy Sky -
3600x2542
Analysis logo -
5858x3905
Black Windmills during Sunset -
5184x3456
black metal wall lamps -
3648x2736
car engine bay of orange car -
4421x2947
person holding light bulb -
5184x3456
clear bulb -
3445x2297
person holding light bulb -
3200x1907
photography of wind turbines -
6016x4000
white and yellow spiral light bulb -
4364x2667
clear glass filament bulb on blackboard -
3600x1800
two glowing question marks -
5472x2585
house with windmill and tall trees during daytime -
3264x2448
person's right palm