February 17, 2025

Athens News

News in English from Greece

Christmas lights: how to calculate how much electricity they “burn”


As Christmas approaches, many people wonder how much electricity they use. christmas lightswhich they installed in their homes.

Replacing old incandescent or fluorescent light bulbs with LED bulbswhich consume 50% to 90% less electricity, can significantly reduce their operating costs.

Each package with lights indicates total power consumption in watts. To calculate the cost of electricity, you multiply the number of watts by the number of operating hours and then by the price per kilowatt hour. For example, for 100 LED light bulbs that consume 6.6 watts per hour if they are turned on for 10 hours a day, daily consumption will be 66 watts. After government subsidy, the price per kilowatt hour is approx. 0.155 euro. Thus, multiplying 66 watts by 0.155 euros (price per watt) we get total cost 0.102 euros per day for 1 garland.

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Garlands like those in the picture cost at least 20 euros per day.


Mister Fanis Kalambakas – shop owner in the Evosmos area in Thessalonikiwho decorated his store, creating a real Christmas atmosphere. He installed colorful lights and shared tips on how consumers can reduce their energy consumption and stay safe.

According to Mr Kalambakas, if someone is using Christmas lights from last year, they should first check exposed wiresbroken light bulbs or loose connections, and if found defective, throw them away. In addition, Christmas lights must meet certain technical requirementsso as not to put health, property and even life at risk.

In particular, they must be marked C.E.technical characteristics (voltage, power, operating frequency), product type, details of the manufacturer and responsible importer/distributor in Greece.

In addition, they must be accompanied Operating instructions in Greek and contain information about the company that provides the product or authorized device service data.



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