... time is 6 - 8 hours 1:solar home system has maintainence free battery 2:competitive price for ... system3:long lifespan 4:stable output solar home system.Solar power generation system included by solar panel, batteries, solar ... Solar energy controller, it is to control the system work, and to the battery up to the ... hours5. If there is no sun , the system needs continuous supply how many days?6. Other ...