LED Bulb Efficiency Clearly Pulling Ahead of Compact Fluorescents
A few years back, the first LED-based lightbulbs clearly beat any incandescent bulbs. But LED lights were not a real rival for the compact fluorescent bulbs.
Although the technology behind LEDs had the potential to be far more efficient than any other lighting source, the complete LED bulb package wasn’t doing that much better at the time than the far more mature fluorescent bulbs, which output roughly 60 lumens for every Watt put in.
After some small boosts in 2013, however, a new generation of more efficient LEDs hit the market this year, raising the typical efficiency to nearly 100 lumens per Watt. The increased efficiency is coming at a time when prices for the bulbs continue to drop; given their expected lifetimes, they’re now far and away the most economical choice for most uses.
The graph also nicely displays why incandescents have been booted off the market for a failure to achieve sufficient efficiency, as they have flat lined at around 15 lumens per Watt. [via ars technica]
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