... constant current; 3.CE(EMC+LVD) 4.IP67 high power led driver supply1.Product parametersInput Voltage110-260VInput Frequency40/60HZPower Factor0 ... ~80°CEnv.protectionIP67 2.Characteristics of product:(1).High efficiency,save energy, environment friendly(2).High stability and low ripple, ... warranty(6).Certifications for CE(EMC+LVD),ROHS 3.Led power supply of constant current use in guardrail lamp,flood ...