300W Solar Power Controller Inverter

300W Mini Blue All In One Solar Power System Include Solar Inverter Controller For Home All in one solar power system 2017 new product,housing appearance,innovative design,using a big screen digital display with blue back light,this system is built in 500W pure sine wave inverter and PWM 20A controller with double USB charging port.solated circuit,strong impact resistance,constant voltage and stable output,low interference. Features: 1. High reliability and efficiency,low