Solar power systems work principle:  the solar panels receive the sun radiation, turn it to electric energy and store it in batteries through charge & discharge controller. If the system output voltage is required as AC, so inverter is needed to exchange DC to AC, then supply electricity to loads.

Solar power systems design needs to know following information:

1> the installation city of system, for example: Shanghai, China. Because we have to check the average sunshine illumination time. Or, it's better if you can tell us the data.

2> load type, power, quantity, work hours of your all home appliances in one day. For example: TV, 100W, 2 sets, 6 hours per day.

3> if the weather is not sunny, how many overcast and rainy days is required?

1> how much wattage of LED lamp is required?

2> how many hours the light will work per night?

3> how many continuous rainy days is required?

4> what's the average sunshine illumination time in the place the lights will be installed?

The above 4 information is very important to design the solar lights, if possible, you can also tell me height of the pole, which type of road, width and length of road etc, and we will design and suggest the corresponding and suitable configuration of solar lights for you.