2.By adopting 120掳*60掳precise supramaxilmal angle lens,ratio of distance and height is more than 1:1 which is specially suitable for long and narrow area; 1.Adopted import 1W high power LED which luminous efficiency is about 120lm/W and its heat emitting in unit area is small,the lifespan of LED can meet over 50000h; 4.The circuit is adopted constant current and voltage mode and has protection of over current,over voltage and over temperature to extend the life of circuit and LED; 3.There is few dazzle by reducing luminous intensity in unit area adopted individual 3W high power LED; No need to worry about the reliability of outdoor lighting; save on electricity bills; no running costs; and lighting remains operational even in rainy weather.