Solar panels solar power system is the core part of the solar system is part of the highest value. Its role is to convert solar energy into electrical energy, stored in batteries or sent to, or promote the work load. Solar panels will directly determine the quality and cost of quality and cost of the entire system.
Solar Controller: Solar controller's role is to control the entire system state, and played a battery charge protection, over discharge protection. In the large temperature difference, the controller should have qualified temperature compensation function. Other additional features such as light-control switch, control switch when the controller should be optional
Batteries: lead-acid batteries generally, 12V and 24V are generally two, small micro-systems, can also be used nickel metal hydride batteries, nickel cadmium batteries or lithium batteries. Its role is when there is light emitted by solar energy stored up, and then released when needed.
Inverter: In many cases, are required to provide AC220V, AC110V AC power source. As a direct output of solar energy are generally DC12V, DC24V, DC48V. In order to provide electrical power to AC220V, need to be issued by the solar power system to convert DC to AC power, so need to use the DC-AC inverter. In some cases, you need to use a variety of voltage, load, also used DC-DC inverter, such as the electrical energy will be converted to 5VDC 24VDC of power (note, not a simple step-down).