How much hours can I use a 10AMP solar power system?

This depends on the size of your system. Solar power systems are sized in Watts. 100 watts or 1 KW are typical sizes for residential applications. Both 100 watt and 1 KW solar panels from the same manufacturer will have an equal performance over temperature, irradiance, etc. The difference is in the size and weight of the panel. A 1 KW panel will provide 1000 watts at peak light, whereas a 100 Watt panel will provide 100 watts at peak light. The number of hours you can use solar power is equal to the size of the system in watts (W) divided by the power rating of the batteries in ampere-hours (A), and then that number is multiplied by 24 (the number of hours in a day