Melani Warod

The news on June 3, " 2009 electricity has the industrial exhibition " which electricians of Panasonic held in Tokyo Have, has exhibited and all adopted shop,etc. that LED lighted. Simulation has set up two grocery shops, one is that the illumination adopts the flush light of halide lamp, one is that all illuminations are replaced and lighted as LED. This company shows, although the illumination intensity that LED lights is low, its perception of brightness is equal to halide lamp, the electric consumption that and LED lights can be cut down. Replace into LED and light, can cut down 75% of the electricity consumption.

This company assesses and tests the perception of brightness of the space for being quantitative, has presumed " Feu " by oneself Index. " Feu" It is the index based on that the difference of the relative brightness is made, though illumination intensity and luminous flux are minor, but through improving Feu, would not feel shading. With adopting 1000lx illumination intensity of the halide lamp shop to compare, it is only 800lx to adopt the illumination intensity of shop that LED lights, but Feu values are all 20, not inferior in luminance. In addition, adopt LED, can realize light fixture slim to take, it is medium-sized in the shelve to be apt to be built-in easily. In the show this time, have imbedded the slim LED flush light that would go on the market in June of 09 on the goods shelve. The subject existing at present is to adopt the cost. " the initial investment is more than 2 times of the halide lamp " (the announcer of this company) . But because can cut down the electric rate, the life-span can be lengthened to more than 10 times, so the running cost is reducible, " but the foundation is lighted, can offset the investment cost in about 3 "