Hand changes the temperature to 21 degrees Celsius on a electronic thermostat. Symbol for saving energy.

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Size: 5782px × 3449px
Location: Hamburg, Germany
Photo credit: © Frank Harms / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 19, 21, button, celsius, cold, control, cool, cooling, crisis, degree, degrees, energy, equipment, heat, heating, home, house, lowering, modern, nineteen, office, reduce, reduction, regulate, room, save, saving, savings, system, technology, temperature, thermometer, thermostat, twenty, warm, winter