power adapter 1.professional manufacturer 2.internatonal approvals 3.output voltage : 3.3-24V output current : 50-5000mA power adapter1. good quality and reasonable price2. safety certifications : UL,CE,CB,PSE,BS,CCC,C-TICK,FCC,EK,ROHS3. features ----output voltage range 1-36V ----output current range 50-5000mA4.color--- black ,white power adapter