Battery capacity is too small can not meet the needs of the night lighting, battery capacity is too large, while the battery is always in a loss of power, affecting battery life, while causing waste.

The choice of battery is to look at solar cells, load to determine, the following we introduce in the system design. Load
Solar lighting products to energy conservation and environmental protection as the advantage, of course, the load to energy saving, long life. We generally use LED lights and 12V DC energy-saving lamps and low-pressure sodium lamps.

At present, most of the selection of LED lawn light as a light source, LED long life, up to 100,000 hours or more, low voltage, ideal for use in solar lawn light.

Garden lights generally use 12V DC energy-saving lamps, DC energy-saving lamps voltage DC, no inverter, convenient and safe. In this case,
Street lamps generally use 12V DC energy-saving lamps and low-pressure sodium lamp, low pressure sodium lamp light efficiency (up to 200LM / W). But because of low-pressure sodium lamp price is more expensive, less. Lamp housing
We collected a lot of information on foreign solar lights, in the beautiful and energy-saving between the two, most have chosen to save energy. Lamp appearance requirements do not very high, relatively practical on the line. There are many manufacturers look very beautiful, selection of stainless steel shell. But performance in the end what? This allows us to ponder! system design
A good solar lighting products, the key lies in system design, how is a reasonable system design? Let us first look at the impact of several important factors in the system it! Latitude
Solar square on the front side of the total radiation in the longest days without sunshine day power consumption
Mean daily peak sunshine hours
Let us imagine: If the solar battery charge less than the daily discharge of what will happen? If the rainy days for several years the system can lighting it? These problems should be carefully designed by our design staff. Here I give you a simple method to determine the performance of solar lighting systems: We must know the system load power, 1: solar power must be higher than the load power 4 times higher than the system to work properly. 2: The battery capacity must be higher than the load power consumption more than 3 times (western region), the southern region to be higher than 5 times as well.