The LED street lamp light source with high color temperature is white, and the human body has poor visual comfort to the light source, which is easy to be covered by fog. In relevant regulations, the relevant color temperature of led street lamps shall not exceed 5000K. In addition, if medium or low color temperature is preferred, how to achieve low color temperature?

In the LED industry, the higher the color temperature, the higher the light effect. The lower the color temperature, the lower the effect of light. Therefore, LED street lighting is basically modular, with the main structure of LED module, LED driver power supply and lampshade. In order to achieve low color temperature of LED street lighting, LED module is mainly determined. The phosphor mainly affects the color temperature, while LED chip, phosphor and secondary light distribution lens mainly affect the light effect.

The method to realize low color temperature of LED street lamp: adjust the proportion of red powder, green powder and yellow powder of LED when packaging, and package LED beads with different color temperatures. The main methods to achieve the highlight effect are: First, the LED chip with highlight effect is used. The other is to use LED phosphor with high conversion efficiency. The third is to use LED secondary light distribution lens with high luminous rate. Fourth, choose aluminum plates with high thermal conductivity.