
Suspose you replace an incandescent bulb of 40 watt. This bulb can be replaced by a led bulb of 5 watt.
This bulbs is switched on, on everage for 5 hours a day.
This leads to saving of energy of approxemately 87%!
Besides saving energy you also save the environment;
An incandescent bulb of 40 watt produces + 41 kg CO2.
A led bulb of 5 watt produces + 5,2 kg CO2.
(mentioned figures are indicative)