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Facts about LED Lights That You Probably Didn’t Know 1. LED light bulbs are currently more expensive than traditional light bulbs, but the cost has been reduced by 90 percent over the last several years. 2. An incandescent lamp converts about 9-10% of the energy fed to it into light, whereas LEDs convert nearly 100%of the energy they consume as light. 3. If the entire United States would replace only 50% of the existing incandescent Christmas lights around the holidays, the potential energy cost savings starts around $17.2 billion dollars. 4. Due to the physics involved, LED lamps have what we call Instant On — unlike their incandescent and compact fluorescent (CFL) counterparts. What this means is that you can switch an LED lamp on and you get the full brightness of that light instantly.
