srt-sd818

タイトルまたは説明

1. The led light is unidirectional, no light diffusion, which ensure the luminous efficiency 2. Unique secondary optical design, further improves the light efficiency 3. Light efficiency have reached *0lm / W, and there is potential. Overall, the LED total luminous efficiency is stronger than high pressure sodium lamps 4. From the visual psychological point, high pressure sodium lamp CRI is only *3, while LED light is *5+. To achieve the same brightness, the average LUX would reduce by at least *0% by replacing HPS lamps with LED lights 5. Lumens depreciation is less than 3% per year, it would still reach the demand of road illumination. However, the HPS light is with higher depreciation, more than *0% deduction for one year