Several matters needing attention in the design of solar LED street lamp lighting

　　 At present, the solar LED street lighting market is very active, and the LED light source is the most important component of solar LED street lights. Improper selection of solar LED street lights can not exert effective performance, or even can not be used normally. The following Changhui solar street light manufacturers make some suggestions for your reference:
　　 1. Why constant current is necessary: u200bu200bThe characteristics of LED light sources are greatly affected by the environment. For example, as the temperature rises, the voltage of the LED will increase, and the increase of the voltage will increase the current of the LED. Long-term operation under super-rated current will greatly shorten the service life of the LED light source. And LED constant current is to ensure that its actual working current remains unchanged when environmental factors such as temperature and voltage change.
　　2. The matching of solar LED street lamp power supply and solar energy: When designing solar panels, its input voltage range is unstable. Therefore, it is necessary to use a high-quality battery, so that the voltage and current on each LED light source are the same, so that the solar LED street light lighting effect can be maximized.
　　3. The working current and voltage of the LED light source: Generally, the rated working current of the LED light source is 20 mA. Some manufacturers design 20 mA at the beginning. In fact, the LED light source generates serious heat when working under this current. A design of 17 mA is ideal. The recommended working voltage of general LED light sources is 3.0-3.5V, and most of them work at 3.125V after testing, so the calculation formula of 3.125V is more reasonable, so as to ensure the effective lighting of solar LED street lights.