Panasonic’s LED blub last for 19 years
The EverLed series of lightbulbs, scheduled to be released in Japan on October 21, are the most efficient LEDs to ever be produced.
With the E26 “daytime light” model using 85 lumens per watt for 40W bulbs and 82.6 lm/W for the 60W bulbs.
The E26 bulbs are also lighter than other LEDs by approximately 40g.
Full Story at Inhabitat.com