Design of working electrical parameters of LED light source for solar LED street lights

　　The lower the driving current of the LED light source of solar LED street light, the smaller the heat emitted, so the brightness is also smaller. The driving current of the solar LED street lamp circuit design is generally only 5-10mA, and if the number of lamp beads used in the LED light source reaches 500 or more, the driving current will generally be 10-15mA, and the driving current of the general popular LED application lighting is 15-18mA, few people will design the current above 20mA. Under the driving current of 14mA, the cover is added to make it impermeable to the wind, and the inside temperature reaches 71 degrees for 1000 hours, the light attenuation is 3%, which shows that this low-attenuation LED light source has reached the level of use in such an environment. No matter how large it is, it will cause damage.　　The plastic cover designed basically does not have the function of heat conduction and heat dissipation, but generally when designing solar LED street lights, the heat conduction and heat dissipation issues must be considered. Therefore, the working electrical parameters of the LED light source should be designed according to the actual situation. If the solar LED street light has good heat conduction and heat dissipation function, there is no problem if the driving current of the LED light source is increased a little, because the heat generated by the LED light source will be exported to the outside instantly, which will not damage the LED itself. On the contrary, if the solar LED The heat conduction and heat dissipation function of the street lamp is not perfect. It is better to reduce the driving current of the circuit design so that it only emits a small amount of heat to ensure the stability of the working environment temperature of the solar LED street light source.