A bulb that shines for 19 years

Physics Today: Panasonic will launch next month a new household LED light bulb in Japan that it says lasts 40 times longer than incandescent bulbs.

The screw-in bulbs that fit common light sockets are part of the EverLED line.

According to Panasonic, if used an average of five and a half hours per day, the new bulbs can last up to 19 years. That's 40 times longer than incandescent bulbs.