How many things do I need if I want a solarsystem for my house?
Normally, you will need some solar panels,an inverter, a controller and some batteries.
How big solar panels and inverter should Iuse?
Generally, it depends on the equipments youare going to use. If you just want to use a TV, some lights, we will recommendyou at least a 300W system, but 600W will be better. If you also want to use afridge, we will recommend you a 1000W system.
Why some of your inverters are moreexpensive?
The expensive ones are pure sine. If youwant to use TV, fridge or such kind of equipments, we will recommend you totake those pure sine inverters, in case the inverter damage your equipment.