because the amorphous silicon solar cells on solar lighting conditions are relatively low.
First of all, any solar lighting products we must first understand the solar cells, solar cells have five electrical performance parameters: 1, Isc is the short-circuit current 2, is the peak current 3, Voc is the open-circuit voltage

4, Vm is the peak voltage 5, Pm is the peak power
Pm is the peak power = Im is the peak current × Vm is the peak voltage Note: The above calculations according to the external characteristics of solar cells
For single-chip solar cells, it is a PN junction, in addition to when the sun shines on it, it can generate electricity, it also has all the characteristics of PN junction. In the standard light conditions, its rated output voltage is 0.48V. The solar cell modules used in the solar lighting fixture are each formed by connecting a plurality of solar cells.

Users can look at solar cells to know the price, performance and stability of solar lighting, the following I will be under the load and the battery between the charge and discharge controller
Regardless of the size of the solar luminaire, a well-behaved charge-discharge control circuit is essential. In order to extend the service life of the battery, it must limit its charge and discharge conditions to prevent the battery overcharge and deep discharge.In addition, the solar photovoltaic power generation system input energy is very unstable, photovoltaic power generation system to control the battery charge Than ordinary battery charging control to be more complex. For the design of solar lamps, the success and failure often depends on the success of the charge and discharge control circuit and failure. Without a good performance of the charge and discharge control circuit, it is impossible to have a good performance of solar lamps. Charge and discharge controller must be to the following characteristics 1, anti-anti-charging control 2, anti-overcharge control 3, over-discharge control 4, the temperature compensation battery
As the solar photovoltaic power generation system input energy is very unstable, so the general need to configure the battery system to work, solar lighting is no exception, you must configure the battery to work. Generally lead-acid batteries, Ni-Cd batteries, Ni-H batteries, their capacity to choose a direct impact on system reliability and system prices. Battery capacity of the general choice to follow the following principles: First, to meet the premise of the night lighting, the day the solar cell components to store energy as much as possible, but also to meet the continuous storage of rainy nights and nights lighting needs electricity.