The Cost Factor
While LED Christmas lights will cost you more money upfront, you'll save money in the long run. You can pay $13.65 per month to decorate your rooftop with those old incandescent lights, or you can pay 22 cents with LED lights (prices estimated by Xcel Energy Colorado). And LEDs cost more to produce because components are often assembled by hand, they need conducting material to dissipate heat and to get a natural white glow they are often coated with yellow phosphor.
Article source here: 10 Things You Should Know About LED Christmas Lights
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