LED street lighting benefits-NEWS
URL: https://www.masonleds.com/news/led-street-lighting-benefits-66874587.html Street lights have profited greatly from LED technology which produces light by generating radiative electron-hole recombination in solid state semiconductors, rather than by exciting a gaseous medium or heating a thermal radiator in glass envelopes or enclosures. Solid state lighting technology offers compelling advantages over HID systems including high-pressure sodium (HPS), low-pressure sodium (LPS), metal halide (MH) lamps. The biggest drive that spurred on the shift from HID (HPS, LPS, MH) to LED is the substantial energy savings offered by LED technology. HPS lamps, the ever most popular street light source, can hit a source efficacy as high as 150 lm/W in high wattage products, however in real world applications their source efficacy is around 100 lm/W. When the optical and ballast losses are taken into account, the system efficacy of HPS street lights can drop by 30% - 40%. Whereas phosphor con...