Solar Voltage Stabilizer for Solar Panel Battery Management with USB

High-concerned chemical : None Brand Name : MagiDeal Origin : Mainland China MainKey1 : Voltage Stabilizer MainKey2 : Solar Charge Controller Voltage Stabilizer MainKey3 : Solar Panel Regulator Fast Charge Intelligent MainKey4 : Regulator Lighting Intelligent Controller MainKey5 : High Withstand Voltage 5V 3A Home Industrial MainKey6 : with 2 USB Port Control Unit Black