According to Japanese retail survey company GfKJapan aggregating the sales data of 4,000 stores in Japan. Due to the
restriction of electricity by the electric power plant after the earthquake, the Electricity saving consciousness of the people
upsurge. The inquiry of LED lightings and LED bulb lamps increased fast so much.
 
GfK points out, March 28 - April 3, The Sales Volume of LED bulbs increase to 26% of the whole light bulbs marketing.
The ratio raised continuously for three weeks compared to the before March 7-13 of the earthquake, the ratio is raised 9%. 
 
The power consumption of LED bulbs is only about 1/7 of the filament lamp general electric incandescent bulbs and long
life span, so the from the beginning of 2010 the inquiry increased step by step. But due to the unit price is reach up to
2,000 yen( About 150 RMB)  the sales volume only kept at 20%. After the earthquake in Japan, the raised awareness
of power saving push the current LED lamps sales proportion greatly enhance to 25%.

The inquiry of LED lightings and LED bulb lamps increased much in Japan after the earth quake