1, The basic concept and importance of lumens
Lumen is a unit of luminous flux used to measure the total amount of visible light emitted by a light source per unit time. Simply put, the higher the luminous flux, the stronger the brightness of the light source. For streetlights, sufficient luminous flux can ensure sufficient illumination intensity on the road at night, improving the safety of driving and pedestrians.
2, Road type and lumen demand
Main road
The main road is the artery of urban transportation, with high traffic volume and fast speed. Therefore, the brightness demand for street lamps on main roads is relatively high. Generally speaking, the luminous flux of streetlights on main roads should be set between 2000 and 5000 lumens. This level of brightness can ensure that drivers still have sufficient reaction time when driving at high speeds, timely detecting and responding to traffic conditions, thereby ensuring driving safety.
Secondary roads and residential roads
Compared to main roads, secondary roads and residential roads have lower traffic flow and relatively lower vehicle speeds. Therefore, the brightness of the street lights on these roads can be appropriately reduced to minimize the impact of light pollution on surrounding residents. Generally speaking, it is recommended that the luminous flux of streetlights on secondary roads and residential roads be between 1000 and 3000 lumens. This brightness can meet basic lighting needs without causing excessive light interference.
3, The impact of usage environment on lumen demand
In addition to road type, the usage environment is also one of the important factors to consider when choosing the luminous flux of street lamps.
Weather conditions
In areas with frequent rain and fog, due to the scattering of light by water vapor and particles in the air, visibility is reduced. Therefore, it is necessary to choose street lamps with higher lumens to ensure sufficient lighting effect. In addition, in winter, due to the possibility of road icing or snow accumulation, it is also necessary to increase the brightness of street lights to improve driving safety.
Surrounding environment
If there are trees, buildings or other obstructions around the streetlights, it will affect the propagation and distribution of light. In this case, it may be necessary to increase the luminous flux of the street lamps to ensure sufficient illumination range. At the same time, in order to avoid direct light shining on residential windows and causing light pollution, the design of street lamps also needs to consider the direction and angle of light.
4, Balance between safety and energy conservation
When choosing the luminous flux of street lamps, it is also necessary to consider the balance between safety and energy efficiency. Although high lumen street lamps can provide stronger lighting effects, they also increase energy consumption and operating costs. Therefore, on the premise of meeting basic lighting needs, energy-saving products such as LED street lights with high energy efficiency and long lifespan should be selected as much as possible. At the same time, through a reasonable layout of lighting fixtures and intelligent control systems, on-demand lighting and time-sharing control of street lamps can be achieved, further reducing energy consumption and operating costs.
5, Precautions in practical applications
Lamp selection and installation
When choosing street lamps, in addition to considering the luminous flux, it is also necessary to pay attention to parameters such as color temperature, color reproduction, and energy efficiency ratio of the lamps. Meanwhile, the installation height, angle, and spacing of the lighting fixtures can also affect the lighting effect. Therefore, when designing and installing streetlights, multiple factors need to be considered comprehensively to ensure the best lighting effect.
Regular maintenance and overhaul
Street lights may be affected by pollutants such as dust and dirt during use, which can reduce their brightness. Therefore, it is necessary to regularly clean and maintain street lamps to ensure their normal illumination. At the same time, it is necessary to promptly inspect and replace malfunctioning street lights to avoid safety hazards.
