LED Christmas lights use 90% less energy than incandescent bulbs. They are also brighter, less prone to breaking, and cool to the touch. One thing to note however, is that almost all Christmas lights are made in China, probably with questionable materials and labor practices, and then transported half-way around the world. You can find LED Christmas lights at Amazon. You can also find some snowflake-shaped and color-changing Christmas LEDs from Environmental Bulbs. from.http://www.metaefficient.com/leds/led-christmas-lights.html
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