8 meters 80W solar street light illuminance how much?

Solar street light is a kind of lighting equipment that uses solar energy to generate electricity, which converts solar energy into electricity through solar panels, and then stores electricity through batteries, and finally illuminates through LED bulbs. So, how much is the illumination of 8 meters 80W solar street lights?

First, we need to understand what illumination is. Illuminance refers to the luminous flux received per unit area, usually expressed in lux, 1 lux is equal to 1 lumen/square meter. The higher the illuminance, the more light received per unit area, the better the lighting effect.

For solar street lights, their illuminance is affected by a number of factors, including the conversion efficiency of solar panels, the energy storage capacity of batteries, and the luminous efficiency of LED bulbs. In general, the illumination of solar street lights is between 10 lux and 30 lux.

According to the information given, the power of 8 meters of 80W solar street lights is 80W, which refers to the rated power of solar panels. However, since the conversion efficiency of solar panels is usually between 15% and 20%, the amount of power that can actually be converted into electricity is correspondingly reduced. Assuming a conversion efficiency of 15%, the actual power converted to electrical energy is 80W * 15% = 12W.

Next, we need to consider the luminous efficiency of LED bulbs. In general, the luminous efficiency of LED bulbs is between 80 lumens/watt and 100 lumens/watt. Assuming that the luminous efficiency of the LED bulb is 80 lumens/watt, the actual luminous flux is 12W * 80 lumens/watt = 960 lumens.

Finally, we need to convert the actual luminous flux into illuminance. Since the lighting range of solar street lamps is large, we need to calculate the illumination at a certain point within the lighting range of street lamps. Assuming a street lamp illumination range of 10 square meters, the illumination at that point is 960 lumens / 10 square meters = 96 lux.

In summary, the illumination of 8 meters 80W solar street lights is about 96 lux. It should be noted that this is only an estimate, and the actual illumination will be affected by other factors, such as the design of the lamp, the reflection of the environment, and so on.