... 3W led driver (IP67,CE,ROHS ) size:25*25mm,current700ma+/-5% input voltage:110-250V output:4V,2.8W 2 years warranty 1*3W led driver(CE,ROHS,IP67)1 ... low ripple, increase light efficiency and decrease light attenuationAssure LED stability long lift and light efficiency by constant currentIntegrity ... over loading, over voltage, over current2 years warrantyCertifications for CE(LVD + EMC) & ROHS ,IP67