Ushio Lighting Launches New LED Spotlight

Ushio Lighting Inc launches an LED spotlight that general color rendering index(Ra) is as high as 97 on Aug 5,2011, in Japan.

The spotlight named “Cool Spot LED” is aimed for facilities in hotels and halls. It has lower consumption and longer product life that compared with spotlight using halogen lamps.

Ushio Lighting employed the "Natural Light LED" for the light source of the spotlight, which is a white LED made by combining a purple LED chip and red, green and blue fluorescent materials.

Among 15 kinds of color rendering indexes (from R1 to R15), the Natural Light LED has high values not only for R1 to R8, which are used to calculate Ra, but for R9 to R15. As a result, it became possible to render natural colors as if objects are exposed to sunlight.

The Cool Spot LED uses 18 white LEDs. Its central illuminance is 2,300lx at a distance 1m away from the light emitting surface. Its power consumption and beam angle are 27W and 24°, respectively. The color temperature of the spotlight is 4,000K, but Ushio Lighting will also offer a model whose color temperature is 5,000K.

The rated life of the new LED spotlight is 20,000 hours (the time it takes for the total luminous flux to decrease by 30%). It measures 180 (W) x 225.5 (H) x 120mm (D) and weighs 1.1kg. It can be connected to existing dimmer control circuits.

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