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Solar home system consists of the solar modules, the solar controller, the storage battery (ies). If the output power is 220 VAC or 110VAC, the inverter will be needed too. Function of each basic part is: 

1. The solar modules: The solar module is the core and the most valuable part of the solar electricity generating system. The function is to convert the radiation of the sun into electricity or send it to the storage battery, or promote the workloads. 

2. Solar Controller: The function of the solar controller is to control the working status of the whole system, and provide the charging protection and over-discharge protection for the storage battery. In places where differences in temperature are too high, the qualified controller shall have the function to compensate the temperature. Other additional functions such as the light-operated switch or the time-operated switch are all option for the controller. 

3. Storage Battery: Normally the lead-acid battery. In small and micro systems, nickel-hydrogen cell, nickel-cadmium cell or lithium cell can be used too. The function is to storage all electricity emitted by the solar modules when there is the sunlight, and to release the electricity when necessary. 

4. Inverter: The direct output solar energy is normally 12VDC, 24VDC, and 48VDC. To provide power for apparatus of 220VAC, DC-AC inverters are required. 

Solar home system Description: 

Item No.: XHL-1000W 
Solar Panel: 1000W 
Inverter: 1.5KW, DC24V sine wave 
Lead Acid Storage battery free maintenance: 24V 400AH 
Control system: 24V 30A 
This solar home system can provide electricity: 3KWH/1Day at maximum, can keep work continuously in 2 to 3 rainy and cloudy days. 

Item No.: XHL-1500W 
Solar Panel: 1500W 
Inverter: 2KW, DC24V sine wave 
Lead Acid Storage battery free maintenance: 24V 700AH 
Control system: 24V 45A 
This solar home system can provide electricity: 4.5KWH/1Day at maximum, can keep work continuously in 3 rainy and cloudy days. 

Item No.: XHL-2000W 
Solar Panel: 2000W 
Inverter: 3KW, DC48V sine wave 
Lead Acid Storage battery free maintenance: 48V 500AH 
Control system: 48V 40A 
This solar home system can provide electricity: 6KWH/1Day at maximum, can keep work continuously in 2 to 3 rainy and cloudy days. 

Item No.: XHL-3000W 
Solar Panel: 3000W 
Inverter: 3KW, DC48V sine wave 
Lead Acid Storage battery free maintenance: 48V 700AH 
Control system: 48V 50A 
This solar home system can provide electricity: 8.5KWH/1Day at maximum, can keep work continuously in 2 to 3 rainy and cloudy days. 

Item No.: XHL-5000W 
Solar Panel: 5000W 
Inverter: 5KW, DC48V sine wave 
Lead Acid Storage battery free maintenance: 48V 1000AH 
Control system: 48V 90A (2PCS 48V 50A controller in parallel) 
This solar home system can provide electricity: 15KWH/1Day at maximum, can keep work continuously in 2 to 3 rainy and cloudy days. 

Item No.: XHL-8000W 
Solar Panel: 8000W 
Inverter: DC48V 8KW sine wave 
Lead Acid Storage battery free maintenance: 48V 1800AH 
Control system: 48V 140A (2Set 48V 70A) 
This solar home system can provide electricity: 24KWH/1Day at maximum, can keep work continuously in 3 rainy and cloudy days.