500W all in one solar system(gel battery version)

Product details specification:
Mono solar panel 200W mono solar panel
Vmp:18.5V Voc:22.5V Imp:8.11A 21%
Transfer Efficiency 25 years life time
Solar controller inverter gel battery all in one
Inverter:500W Controller:20A/12V
Gel Battery 12V55AH
Output voltage:AC220V 50/60HZ 5V 12VDC
Charge time:4-6hrs
Working time:8-10hrs Pure sine wave output USA/Germany technology

Feature:
1. Solar controller inverter gel battery all in one design.
2. 22% efficiency solar panel,USA technology;
3. 5-6years use life gel battery,Germany materials and technology;
4.USA mosfet for inverter,toroidal transformer,high efficiency and strong ability.