500w Off-grid Solar Generator

We are offering 500w off-grid solar generator.
model:sw-hs500-250

solar panel:500w

battery capactiy:12v200ah

working for:6 pcs of cfl, 1 washing machine, 1 fan and 1 small fridge

inverter:1500w(24v20a)

we are main solar products and solar generation system researcher and manufacturer . We have supplied more than 5000 units of big and small off-grid system in india and abroad. Our system includes the power supply for communication station; independent power source for forest guards; solar home system for rural electrification sponsor by ccb bank; solar lighting systems(10w & 20w), etc.

if you do not think our fixed configuration in the attachment could meet your request, please let us know your own request. To design a solar generator system, the following conditions are needed to consider:
in what area will the system be used?
how much energy (in kwh, or watt*hours) should the system supply per day? (if you feel difficult in calculation, we can send you a form for you to fill)
how much is maximum output wattage (in kw, or watt) of the system?
what about the voltage request? is it 110vac, 220vac ?
how many days should the system work after the battery is fully charged if it continues no sunshine days?

general introduction of the system: for our control cabinet, we have put such function in:
short-circuit protection
consumption lcd display panel to show you the voltage and current(optional, some do not have)
low battery volts warning
overload protection
overdischarge protection
we use deep-cycle battery which is designed to be suitable for solar generation. Addtionally our guarantee is as followings:

battery: 1 year, life: 5~8 years more

controller and inverter: 18 months life: 10 years more

panel: 5 years life: 20~25 years