Solar Street Light Purchase Guide: Wattage VS Lumen, How to Choose?
Sep 30, 2024
When choosing a solar powered outdoor street light, should we look at lumens or wattage? To figure this out, we must first understand what lumens are for solar street lights. What is wattage? Where do they mainly affect solar street lights?
The brightness of solar street lights is usually measured in lumens, and the lumen output of solar powered outdoor street lights can vary greatly depending on factors such as the type of LED (light-emitting diode) bulb used, the wattage of the solar panel, the efficiency of the solar charge controller, and the battery capacity. When choosing a solar street light, it is important to evaluate the specific requirements of the installation location, taking into account factors such as the size of the illuminated area, the required brightness level, and local weather conditions.
If you are mainly concerned about the lighting effect, then lumens should be the primary consideration. Make sure that the lumen value of the selected commercial solar powered street lights is high enough to meet the expected lighting needs and coverage. If the wattage of a commercial solar powered street light is 60W and the luminous efficiency is 150LM/W, then the lumen of this solar street light can reach 9000LM.
If you focus on energy efficiency and environmental protection, in addition to lumens, you also need to pay attention to the light efficiency of the LED light source and the energy efficiency of the entire system. At this point, although wattage is not a decisive factor, choosing low-power, high-efficiency products will help reduce energy consumption, extend the life of solar panels, and reduce overall operating costs.
In fact, in most cases, the best choice is to consider lumens and wattage and other related factors (such as light distribution, color temperature, service life, etc.) comprehensively. An efficient solar street light system should be able to provide sufficient brightness while maintaining a low energy consumption level, so as to achieve a good balance between lighting effects and economic benefits. By comprehensively considering multiple factors, you can choose an ideal product that meets lighting needs and is energy-saving and environmentally friendly..jpg)
The above data is only a reference. If you need to install solar powered led street lights and are not sure about the specific needs, you can contact us. We are an experienced solar street lights manufacturer and can tailor your lighting solution according to your needs. We look forward to cooperating with you.
1. What are the lumens and wattage of solar powered LED street lights?
First, let's take a look at lumens. Lumen is a unit of measurement for luminous flux, which directly reflects the total amount of visible light emitted by a light source, that is, the brightness of the light source. Simply put, the higher the lumen, the more light the light source can emit, and the brighter it is. In the selection of solar street lights, lumen is a crucial indicator because it is directly related to the lighting effect and coverage of the street light. Especially in scenarios where a larger area needs to be illuminated or nighttime visibility needs to be improved, high-lumen street lights can meet the needs more effectively. In contrast, wattage is a unit of electrical power, which is used to measure the electrical energy consumed by a device per unit time. In a solar street light system, wattage usually refers to the rated power of a solar panel or LED light source. However, it is worth noting that wattage is not directly equivalent to the brightness or lighting effect of the light. For example, two different brands of LED lights may have the same wattage, but their lumen output may be very different due to differences in light efficacy (i.e., the efficiency of each watt of electrical energy converted into light energy).The brightness of solar street lights is usually measured in lumens, and the lumen output of solar powered outdoor street lights can vary greatly depending on factors such as the type of LED (light-emitting diode) bulb used, the wattage of the solar panel, the efficiency of the solar charge controller, and the battery capacity. When choosing a solar street light, it is important to evaluate the specific requirements of the installation location, taking into account factors such as the size of the illuminated area, the required brightness level, and local weather conditions.
2. How to choose the lumen and wattage of a solar street light
When choosing commercial solar powered street lights, both lumens and wattage need to be considered, but the emphasis may vary depending on specific needs. If you only ask if we have an 80W solar street light, it is difficult for us to determine how many lumens of solar powered LED street lights you need. To clearly understand the relationship between them, we need to understand the luminous efficiency (lumens/watt), which is a measurement that indicates the efficiency of a light source in converting energy (watts) into light (lumens). Luminous efficiency (lm/W) = lumen (lm)/watt (W). Solar powered outdoor street lights usually use LEDs as light sources because LED lights have the advantages of high efficiency, energy savings, and long life. The luminous efficiency of LED bulbs far exceeds that of traditional incandescent lamps and energy-saving lamps and can provide higher lumens while reducing energy consumption. For example, conventional incandescent lamps have a luminous efficiency of only 40 lumens/watt, while LED bulbs have a luminous efficiency of more than 100 lumens/watt. Therefore, solar powered led street lights using LED light sources are not only brighter but also more energy-efficient and environmentally friendly.If you focus on energy efficiency and environmental protection, in addition to lumens, you also need to pay attention to the light efficiency of the LED light source and the energy efficiency of the entire system. At this point, although wattage is not a decisive factor, choosing low-power, high-efficiency products will help reduce energy consumption, extend the life of solar panels, and reduce overall operating costs.
In fact, in most cases, the best choice is to consider lumens and wattage and other related factors (such as light distribution, color temperature, service life, etc.) comprehensively. An efficient solar street light system should be able to provide sufficient brightness while maintaining a low energy consumption level, so as to achieve a good balance between lighting effects and economic benefits. By comprehensively considering multiple factors, you can choose an ideal product that meets lighting needs and is energy-saving and environmentally friendly.
3. How many lumens does an outdoor solar street light need?
The number of lumens required for solar powered outdoor street lights depends on several factors, such as the height of the pole, the width of the road, and the amount of ambient light available. To determine the appropriate lumen output, it is necessary to consider the recommended lighting levels for different types of roads. Generally speaking, residential streets require about 5,000 to 12,000 lumens per lamp, while main roads and highways may require higher lumen output, usually 10,000 to 15,000 lumens to ensure safety.Reference standards for street light pole height and luminous flux
| Height | Lumens |
| 6 meters | 6000 lumens |
| 8 meters | 8000 lumens |
| 10 meters | 10000 lumens |
| 12 meters | 12000 lumens |
| 14 meters | 15000 lumens |
| 16 meters | 18000 lumens |
| 20meters | 25000 lumens |
The above data is only a reference. If you need to install solar powered led street lights and are not sure about the specific needs, you can contact us. We are an experienced solar street lights manufacturer and can tailor your lighting solution according to your needs. We look forward to cooperating with you.
