**4. Results**

*Solar Cells - Theory, Materials and Recent Advances*

2.AC output 220-240 V, 50 Hz/60 Hz.

3.Constant output power 300Watts.

the year. **Figure 6** shows block diagram of DC way.

At the first experiment was wired between the charge controller and the load but it was not work because output current from it was less than 3A to operate

After modifying the load it can work immediately with DC current. This solar photovoltaic lighting system consists of a 20Watt single crystalline module, a selfcontained photovoltaic controller with (regulator), a sealed lead-acid battery and a single 100 Watt fluorescent light. The system will provide daily lighting throughout

The four primary components for producing electricity using solar power, which provides common 220volt AC power for daily use, are: Solar panels, charge controller, battery and inverter. Solar panels charge the battery, and the charge regulator as it will be shown in **Figure 7** ensures proper charging of the battery. The battery provides DC voltage to the inverter, and the inverter converts the DC voltage to

*3.4.4 Inverter*

Specification:

**3.5 Experiments**

the load.

*3.5.1 DC way*

*3.5.2 Inverter way*

normal AC voltage.

1.DC input 10-15 V

**448**

**Figure 7.**

**Figure 6.**

*Black diagram of solar system with inverter.*

*Black diagram of solar system without inverter.*

The design of modulated circuit shown below in **Figure 8** discuss that solar energy (direct current) can be used to turn on the load for continues six hours to solve problem as it mentioned earlier.
