IDEC SALES OFFICE, a new building for LED lighting completed on March 6, 2008, was released to the media on March 12 (Figure 1). In addition to indoor lighting in offices, corridors, conference rooms, exhibition rooms and toilets, LEDs are also used for lighting and outdoor lights in parking lots (Figure 2). Previously, there have been precedents for the use of LEDs for indoor lighting. "The construction of all LED lighting is still the first in the world" (the company's representative director and president, Tochigi Junki). The new building has a floor area of ​​approximately 2,378 m2. According to the Kashima construction calculations responsible for the design and construction, the total annual electricity consumption can be reduced by about 41% compared with the original lighting fixtures such as fluorescent lamps and incandescent lamps (Fig. 3).
Figure 1 Building exterior
Figure 2 (a) Lighting in the bedroom
Figure 2 (b) Lighting in the exhibition room
Figure 2 (c) Lighting of the corridor and stairs
Figure 2 (d) Lighting of the toilet
Figure 2 (e) Lighting of the locker room
Figure 3 Comparison of power consumption
Figure 4 uses the city pine pattern
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