According to the information given in the topic, we know that the power of LED street lamps is 80 watts or 100 watts, and the height of lamp poles is 10 meters. To calculate the normal illuminance of LED street lamps, we need to consider the following factors:
1. light efficiency: the light efficiency of LED street lamps is usually expressed in lumens per watt (lm/W), which indicates the efficiency of converting electric energy into light energy per watt. The light efficiency of different LED street lamps may be different. Generally speaking, LED street lamps with high light efficiency can provide higher illumination.
2. Beam angle: The beam angle of LED street lamps will also affect the illumination. The smaller the beam angle, the higher the light concentration and the higher the illumination.
3. Installation height: The installation height of LED street lamps will also affect the illumination. Generally speaking, the higher the installation height, the lower the illumination; The lower the installation height, the higher the illumination.
Because the specific light effect and beam angle are not given in the title, we can't accurately calculate the normal illumination of LED street lamps. However, we can give a rough estimate based on general experience.
Generally speaking, under the height of 10 meter, the normal illumination of 80 watt LED street lamps should be between 10-20 lux; LED street lamp with normal illumination of 15-25 lux at the height of 100 meter.
It should be noted that this is only a rough estimate, and the actual illuminance will be affected by other factors, such as the design of lamps and lanterns, the installation angle of lamps and lanterns, etc. If accurate illuminance value is needed, it is recommended to refer to the specific LED street lamp product manual or consult professionals.