... 4.Mounting height:8-10m 5.200w new design stree lamp 200w New Design Induction Highway Street lamp Material ... ROHS,ERP,C-Tick,PSE,ULAdvantages of new design stree lamp :1.Energy saving,super long lifespanIt ... time of switch frequency can be 20,000.5.Little light evanescenceLumen maintenance:2000h>95%,20000> ... quantity of R&D personnel4.Strict quality control 5.Excellent after sale service6.Good credit,all ...