Who Created LED Light?
Nick Holonyak is the man behind the LED light. In the year 1962, he created a light emitting diode that produced a visible red light instead of an infrared light.
The Cost of LED Bulbs
LED bulbs will cost you a lot up front but are worth the money, as they last up to 5 times as long as CFL bulbs and are a lot more energy efficient.
- In the year 2012, about 49 million LED bulbs were installed in the U.S. This saved about $675 million in annual energy costs.
- LED bulbs contain no mercury, unlike CFL bulbs
- Unlike incandescent bulbs, which release 90 percent of their energy as heat , LED bulbs use energy far more efficiently and produce a very small amount of heat.
- LED bulbs do not contain glass