1.A-Grade solar panel 2.Japan TPT,Tempered glass,aluminum frame 3.MC4, waterproof junction box 4.CE,UL,TUV 5.PWM controller A-Grade Folding Solar Panel with PWM Controller40W folding solar panel consists of :2pcs of 20w solar panel, 1pc of waterproof solar charge controller,charging connectors etc.20W Solar Panel, 20W Mono Crystalline Solar Panel20W Solar Panel Features1) High Efficiency2) 12V DC ...