These OptiCore C9 replacement Christmas light bulbs combine astonishing toughness with breathtaking beauty. They're made of polycarbonate, up to 200 times stronger than glass, so they're virtually unbreakable. The bulbs are thicker too, so light penetrates the lens more evenly, creating vivid color distribution. On top of all that, they're energy efficient at less than 1 watt per bulb, with a 60,000-hour average life expectancy. And they're dimmable! The smooth finish and even color evoke the look of old fashioned ceramic-style Christmas lights. Yet thanks to their longevity and toughness, these may be the last replacement lights you ever need to buy.
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