Monday, August 9, 2010

LEDs go from 0 to 64% of lighting sales in Japan in one year

The Japanese economic newspapers are reporting that sales of LED light bulbs in Japan went from essentially zero in July of last year to 64% of sales now, about one out of five units sold.

The prices are dropping really fast.

The best ones I have tested so far are Panasonic EVERLEDS. At small specialty shops near Akihabara Station in Tokyo, they are now going for about $22. The warm white ones have output of 450 lumens for just 6.9 watts. Unbelievably nice. I think they are on track to drop to about $10 by next year. At the electricity rate in Tokyo of about 30 cents per kilowatt-hour, one will pay for itself in two months if used about 10 hours a day. After that, each will save $50 per year in electricity compared to a 60 watt incandescent if used about 10 hours a day.

I think there is going to be wholesale adoption in 2011 in Japan.

Next year, I think about 600 LED light bulb factories are going to come online, so prices should really drop and brightness should go up. Whatever you do, buy one first and test it. There are many issues to learn about before buying many.

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