15W solar charge controller ROHS CE 1)2 years warranty (beside the solar panel , ... ,EMC,IEC,ROHS,CAS 3)battery :12V 15W solar charge controller ROHS CE Our davantage :1.easy yo use 2.good ... :3 years warranty ,below the 12V38AH ,1 year warranty 3)inverter and controller : 2 years warrantyThe term of payment :T/T ,L ...