By using its fluorescent material technologies, Rohm realized a general color rendering index (Ra) as high as 98 and prevented the sulfuration of lead frame, which lowers color rendering index.In general, silver plating of an LED package's lead frame, on which an LED chip is mounted, is reacted with hydrogen sulfide contained in the air coming through the package material and blackened, gradually lowering color rendering index. The LED package developed by Rohm has a white resin layer that reflects light between the package material and lead frame to prevent the sulfuration.Rohm also realized a high heat resistance and a product life of 50,000 hours (the time it takes for the light flux to lower by 30%) at a temperature of 110°C. For the lighting panel, the company employed a special LED. And the panel is superior to OLED lighting apparatuses in terms of cost and luminous efficiency. The luminous efficiency of the panel was not disclosed.
This project is for a parking area of the retailer cooperative chain with around 410 chain-stores all over Japan. The end consumer is quite satisfied with performance of our street light after this demo project’s installation. The details are as the below picture in which the selective model is Led high bay light light pole is 6m height, boom angle is 15°，the tested average flux on the floor is 46lx and along with the light uniformity, which perfectly meet our client’s requirement. Herewith, Spark’s street light will be the most preferred one to be applied for their other hundreds’ stores as well.This is just another success what we’ve obtained in Japan. Due to our well-controlled quality, PSE approval and its popularity in Japan market, we believe that more and more clients over there will seek the cooperation opportunities with Spark. Meanwhile we are also fully prepared to provide you with our best solution and technical support.
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