... 17%; 3.Offer 0.5W-320W solar panel kit; 4.Including battery,controller and inverter. J-SM50 ... 17%;3.Offer 0.5W-320W solar panel kit with mono and poly;4.CE,GS ... years lifetime,10 years warranty.6.One solar kit including solar panels,solar charge contriller and battery. ... high performance EVA; a weatherproof back sheet and sandblast electrophoresis aluminum frame extend the application of modules greatly4 ...