high performance 15w solar power system 1)2 years warranty (beside the solar panel ,battery) 2)CE,EMC,IEC,ROHS, high performance 15w solar power system Our davantage :1.easy yo use 2.good performance and energy-saving .3.simple to maintain .4.ACmodels adopt smooth pure sine wave inverters with prominent performance and incomparable advantage .5.with 80 models of standard&massive producted solar ...