What Types Of Lawn Lights Are There?
Jan 31, 2021
Lawn lights are derived from different types according to different use environments and design styles, which are divided into six categories: European lawn lights, modern lawn lights, classical lawn lights, anti-theft lawn lights, landscape lawn lights, and LED lawn lights.
European style lamp
Its design style mostly adopts some European art elements from European countries, and adds abstract expressions.
Modern lights
Its design style mostly adopts modern artistic elements, and adopts simple techniques to express.
Classical lamp
Its design mostly adopts Chinese classical elements, which are used and modified, such as palace lanterns.
These three types of lawn lights represent different styles and are derived by most manufacturers in order to cater to the design style of urban buildings.
Anti-theft light
Its design is to prevent certain criminal gangs from stealing and selling lawn lamps. Anti-theft lawn lamps are mostly made of polymer composite materials, which are slightly stronger and more corrosive than steel and aluminum, but they are expensive.
Craft lamp
Traditional lawn lights use too much plastic or metal materials, and their shapes are mainly modern, simple and classic. The craft lawn lamp incorporates the elements of handicrafts on the basis of the traditional lawn lamp, and the shape is more abundant. Its design is mostly based on courtyard decoration, supplemented by the lighting function. Product materials include glass, iron, resin, Eva, plastic and comprehensive materials. The main design elements are flowers, animals, characters, and holiday themes.
LED lights
At present, most lawn lights use LED as the light source, and the LED has a long life span, which can reach more than 100,000 hours, and the use voltage is low, so it is very suitable for solar lawn lights. In particular, the LED technology has achieved its critical breakthrough, and its characteristics have been greatly improved in the past 5 years. At the same time, the price/performance ratio has been greatly improved. The led is powered by low-voltage direct current, and its light source control cost is low, adjusting the brightness and darkness, and switching on and off frequently, and will not adversely affect the performance of the led. It is possible to control the color, change the spread of light, and produce dynamic dreams, so it is especially suitable for the application of solar lawn lights. It has many inherent characteristics, and if you do not pay attention to it, it will cause undesirable results. However, the luminous efficiency of LEDs currently sold in the market can only reach 15lm/w, and can only reach 1/3 of the three-color primary color high-efficiency energy-saving lamps.
From the cost point of view, the current production cost per lm: Sanzi Town’s color-based high-efficiency energy-saving lamps (including galvanometers) are 0.022 yuan, and the cost of f5mm white light LEDs in 2002 is 1.9-3.0 yuan. The current production cost per lm is high, and the difference is huge. . From the perspective of application life, the life of three-color primary color high-efficiency energy-saving lamps (including electronic ballast) can reach 6000 hours, and the life of LED can reach 100,000 hours. Ballast) dozens of times, but the actual situation is not so much.
Most solar lawn lights use ultra-bright white LEDs. The time (lifetime) for the ultra-bright white LED luminous flux to reach 50% of the initial intensity under 20ma is less than 10,000 hours. The Institute of Electric Light Sources of Fudan University has proved the above argument. . That is to say, LED is not the best solar lawn light source in many environments at present, unless it is a low-end, solar lawn light with only 1 to 2 years of application, it is probably a solar lawn light below 1w. For solar lawn lights above 1w, it is best to use three-color primary color high-efficiency energy-saving lamps. At present, some solar lawn lights use 30-40 ultra-bright white LEDs with input power above 2w. In this environment, if three-color primary color high-efficiency energy-saving lamps are used, the cost is only 1/10 of the LED, and the luminous flux is the original 4 times.
According to the above analysis, everyone believes that low-power solar lawn lights below 1w that have the ability to adjust light and dark and switch frequently should normally use LEDs as the light source. However, when using ultra-bright white LEDs, we must pay attention to the problem of luminous flux maintenance, otherwise it will easily lead to chaos. For solar lawn lights with larger power, the current application of three-color primary color high-efficiency energy-saving lamps is reasonable. It should be emphasized here that the above conclusion is only a current analysis. When the LED skill level increases, the cost will fall, and the above conclusion must be changed.
For solar lawn lights, considering the reliability, performance-cost ratio, color temperature, and luminous efficiency, everyone believes that the ideal light source should be a three-color primary color high-efficiency energy-saving lamp.