In recent years, all outdoor electric products that use solar energy are becoming very popular. The garden lights combine solar energy, becomes solar powered garden lights. Solar garden lights retain the rich and beautiful shape of landscape lights, and at the same time have the advantages of energy saving and environmental protection, so the markets of solar garden light keeps rising. So when we buy it, how do we distinguish its quality? As a solar garden light manufacturer, we have the following suggestions.
1. Solar lighting system configuration
In order to ensure that the solar garden lamp can always maintain stable work during use, it is necessary to make a good solar lighting system configuration. When configuring the solar lighting system, customers need to consider the selection of solar battery capacity and the selection of photovoltaic module power. Only large enough solar panels and batteries can support the solar garden lights to work all night and provide backup energy for rainy days. In addition, consider the normal use of solar garden lights in bad weather, mainly to ensure the windproof design of the light pole and the windproof design of the battery component bracket.
2. Light source
The common artificial light sources include tungsten filament lamps, xenon lamps, fluorescent lamps, LEDs and so on.
Tungsten filament lamp, also known as incandescent lamp, is a commonly used artificial light source. It has many advantages, such as simple manufacture, more varieties and sizes; 200V, 500V, photography light lamps, etc., have higher color temperatures, but have a short life. Voltage can extend the service life.
Xenon lamp is a commonly used light source for color detection, which uses high-pressure xenon gas to generate light. Its spectral characteristics include near-ultraviolet light, visible light and near-infrared light range. It has strong illumination and good color rendering. Many color difference meters and spectrophotometers use pulsed xenon lamps as the lighting source.
Fluorescent lamp is a kind of fluorescent lamp that is called daily. The light-emitting principle of fluorescent lamp is based on the low-pressure (about 0.01 mm mercury column height) mercury lamp emitting ultraviolet rays to stimulate the fluorescent substance in the tube to emit visible light. The color temperature of fluorescent lamps is 3570-4100K, compared with sunlight, the red light part is obviously insufficient. Its advantages are: The luminosity is stable, so it is easier to grasp the exposure time of the photosensitive film. Because of its large irradiated area, it can make the illumination even for larger originals, so the uniformity of the photographic photosensitive film is ideal. Because of its The spectrum is close to sunlight, so when observing the color of the product, the difference is relatively small. The power consumption is less than that of incandescent lamps, which is more energy-saving and environmentally friendly.
The light-emitting diode (LED) first appeared in the 1860s. It is a typical electroluminescent semiconductor device that can directly convert electrical energy into light energy. Compared with tungsten filament incandescent lamps, it has the advantages of small size, low power consumption, long life, fast response, high mechanical strength, and easy matching with integrated circuits. With the continuous development of LED technology, it has gradually become the mainstream of lighting sources.
There are many brands of LED light sources. If you want garden lights to emit more light at lower power, you must choose high-end brand LED chips such as Lumileds, Cree, Bridgelux… which can save energy and provide higher light efficiency.
3. Energy storage battery
Currently, solar garden lights usually use lead-acid batteries and lithium-ion batteries
Lead-acid batteries have a history of more than 100 years and are widely used as starting power sources for internal combustion engine vehicles. It is also a mature solar energy storage battery with good reliability, easy availability of raw materials and low price. But it has two major shortcomings: First, the energy density is low, and the occupied mass and volume are too large. The other is that the service life is short and the use cost is too high.
As a new type of high-voltage, high-energy-density rechargeable battery, lithium-ion secondary batteries have unique physical and electrochemical properties and have a wide range of civilian and national defense applications. Its outstanding features are: light weight, large energy storage, no pollution, no memory effect, and long service life. In the case of the same volume and weight, the storage capacity of lithium batteries is 1.6 times that of nickel-hydrogen batteries and 4 times that of nickel-cadmium batteries. At present, human beings only use 20% to 30% of its theoretical power. The development prospects are very bright. . At the same time, it is a truly green battery that will not pollute the environment.
The choice of solar garden light battery is directly related to the lighting time and the life of the entire lamp. At present, lithium iron phosphate battery is commonly used as the battery of quality solar garden lights. It has a high cycle life and can usually reach a service life of more than 5 years.
4. Lamp pole
The material of the poles of led solar garden lights can be divided into few types: steel poles, aluminum profiles, die-cast iron. The poles of solar led garden lights are best to choose aluminum profiles, which are easy to shape, light in weight, and corrosion resistant. The aluminum profile can be integrated into the light pole, and the appearance is novel. When choosing the material of the light pole, it is best to choose a professional solar garden light manufacturer. Only professional manufacturers can make reassuring products. To see if the pole of the solar garden light is hot-dip galvanized spray and cold galvanized spray, the distinction is made in the cut, hot-dip galvanized still has coating on the cut, and cold galvanized has no coating on the cut. Hot-dip galvanized light poles generally have a life of more than 20 years, while cold-galvanized light poles generally have a life of about 1 year.
5. Lamp appearance style
Try to choose solar garden lights that match the landscape style. Such as a very good modern community, you will generally choose modern garden lights, which are simple and beautiful. If it is a private villa, most of them tend to choose classical and European garden lights, which are elegant and charming. If it matches the environment, the overall effect will look more beautiful.
6. The color temperature of courtyard lights
The color temperature of the LED lamp is a measure of the light color of the light source, and the unit is K (Kelvin). That is to say, a standard black body is heated, and when the temperature rises to a certain level, the color starts to change from dark red to light red to orange to white to blue, and gradually changes. When a certain light source is the same color as the black body, the light source of the absolute temperature of the black body at that time.
The color temperature is below 3300K, and the light color is reddish to give a warm feeling; there is a stable atmosphere and a warm feeling; when illuminated by a low color temperature light source, the red can be made more vivid.
The color temperature is in the middle of 3000-6000K, and people have no particularly obvious visual psychological effects in this hue, and there is a refreshing feeling; so it is called “neutral” color temperature. When illuminated with a light source of medium color temperature, the blue color has a cool feeling.
The color temperature exceeds 6000K, and the light color is bluish, giving people a cool feeling. When illuminated by a high color temperature light source, the object will feel cold.
Light sources with too cold color temperature are not suitable for private garden, and generally choose softer and warmer ones. If it is too cold, it will give people a sense of cold and cheerless.
As long as you have mastered the above methods of identifying the quality of solar garden lights, you will have more guarantee for its purchase. At the same time, do not covet the cheap prices of solar garden lights. By doing this can you buy high-quality solar garden lights.