1.The Solar power system:
 Solar power system consists of solar panels, solar controller, battery (group). If the output power to 220V AC or 110V, also need to configure the inverter. The role of the various parts:
(A)The solar panels: the solar panels are the core part of the solar system, the highest value. Its role is to make the sun's radiation be converted to electrical energy, sent or stored in batteries, or to promote the work load.
(B)The solar controller: the role of the solar controller to control the entire system, and played a battery charge protection, over-discharge protection. In the large temperature difference, the controller should have qualified temperature compensation. Additional functions, Additional functions, such as optical switch, control switch can be as options.；
(C)The batteries: General for lead-acid batteries, small micro-system, can also be used nickel metal hydride batteries, nickel-cadmium batteries or lithium batteries. Its function is to make the solar panels of electricity be stored, when need to release.
(D)The Inverter: The solar direct output is generally 48VDC, 12VDC, 24VDC. In order to 220VAC to provide electrical power, solar power system will need to be issued by the DC can be converted to electrical energy exchange, requiring the use of DC-AC inverter.