There has never been a car lamp in history that can be like halogen lamps. People despise its low brightness and short lifespan, but they have been used for decades. Since 2010, manufacturers who are dissatisfied with the "ultra-long standby" of halogen lamps have Headlights with different light sources have been designed for the market to choose from: from xenon headlights to LED headlights to laser headlights, technology is constantly innovating. Although as of today, halogen headlights still have the highest market penetration, the rising stars are enough to attract attention. Among them, "bright and power-saving" LEDs are expected to become more popular in 2019 due to their outstanding advantages.
Technological breakthrough makes LED headlights “bright and energy-saving”
According to data, halogen lamps first appeared in 1970 and are still the most widely used car lighting source in China. Because the halogen lamp is yellow light, its penetrating power is stronger than that of the xenon lamp, but its brightness is low and its life is relatively short, so it is called a "candle lamp". Halogen lamps have low cost and low market price, which is why they have dominated the market for many years.
The xenon lamps that appeared in 2010 were popular in mid- to high-end cars with more than 200,000 yuan. Compared with halogen headlights, it emits 2-3 times more light. Many people are conquered by its brightness, especially when driving at night. The lighting clarity is greatly improved, and the tungsten-free structure also makes its lifespan longer than that of halogen lights. longer. However, the common problems of xenon headlights are poor light concentration, delayed start-up, and high heat generated by long lighting time.
After 2013, LED headlights and laser headlights appeared, but the cost of these two headlights has always been high. They were mostly used as gimmicks for high-end luxury cars and failed to be promoted in the market. At this time, the car lighting market was still dominated by halogen. The world of lights. The breakthrough in LED headlight technology really started in 2016. LED headlights, which could only be seen on luxury cars such as the Audi A8L and BMW 7 Series, are now also widely appearing in new home models priced at 100,000 yuan. in the car. LED headlights have the characteristics of high brightness, low power consumption and long life.
At present, compared with xenon headlights, the market price of LED headlights is still higher than that of xenon headlights. Why not change to xenon lights but to higher-priced LED lights? Because the xenon lamp has an important supporting part - the ballast, which uses high voltage to make the xenon arc glow. The moment the xenon lamp is turned on, the ballast can instantly increase the original vehicle voltage from 12V to 23,000V. Increasing the voltage requires a process. There will be a 5-15 second delay when the xenon headlight is started. Due to the ballast accessories, it is impossible to install the xenon headlights without damage, and it is risky. The compact LED headlights have natural advantages in this regard. Moreover, because the light-emitting principle of xenon headlights determines that they cannot focus light, it is necessary to install additional lenses to replace xenon headlights, so the overall cost is higher.
"Bright and energy-saving" is the most significant feature of LED headlights. Data shows that LED lights only require about 50% of the power of the original car's halogen lamps, and the brightness is more than three times that of the original car's halogen lamps. The power of LED lights is generally 20-30W, and there is no need for the high power of 55W of halogen lights. In addition, regarding lifespan, LEDs can easily have a lifespan of tens of thousands of hours, while halogen lamps and xenon lamps only have a lifespan of 800-1000 hours. But are LED headlights in reality as ideal as laboratory data? We have paid attention to several popular LED headlights on the market. In this issue, we got the latest 2019 Yuanda series LED car lights from Istar for an unboxing evaluation.
Istar Yuanda series LED car lights unboxing
Yesda is a domestic LED car lighting company integrating R&D, production, sales and service. In the nine years since its establishment, it has only made LED car lighting products: its current products include car headlights, motorcycle lights, fog lights, brake lights, turn signals and other different types. The Yuanda series is the latest LED bulb in 2019. Compared with older products, it is smaller and dissipates heat faster with the original lighting effect.
The packaging of Istar Yuanda series LED car lights adopts a red paper square design. The bright red color is eye-catching. The product name is printed on the front of the packaging, and the product model and other information are printed on the left and right sides. CREE of the United States and LUMILEDS of the United States are two of the world's top companies in manufacturing automotive lighting sources. Their exclusive strategic partner in this industry is Easta, which is unique in this industry in China. They provide services to Easta. The light source of the car lights.
The back of the package is printed with the product information parameters and manufacturer of the Yistar Yuanda series LED car lights. The working life of the LED lights is more than 30,000 hours and the power is about 30W.
Opening the product package, two black and red LED car lights come into view, and it comes with a "no need to read" product manual. Hahaha, just kidding, you still need to read the product manual. It contains installation tutorials and troubleshooting methods for LED car lights. In addition, this LED headlight has an H7 interface and is suitable for models with H7 interface. Before we buy LED headlights, we need to know which lamp model is matched with our car model, so as to avoid finding out that it does not match the original car after buying it back.
The light-emitting principle of LED headlights: Light-Emitting Diode (LED) is a semiconductor electronic component that can directly convert electrical energy into light energy. Light-emitting diodes are made using the "injection electroluminescence principle" to directly convert electrical energy into light energy, avoiding the need to first convert electrical energy into heat energy and then into light energy like halogen lamps, skipping the step of converting into heat energy. The electro-optical conversion efficiency Very high, up to more than 60%.
Take a closer look at the design of this LED bulb. A lamp post is divided into two sides and achieves 360-degree illumination, which can ensure a fuller light shape, stronger penetrating power, and a perfect light shape. It has also withstood extreme temperatures (-40°C). , 80℃) test to ensure the stability and reliability of the headlights under extreme conditions.
For car light upgrades and modifications, the smaller the size, the wider the adaptability range. The lamp body of Istar Yuanda series LED car lights adopts an integrated design of the driver box, which makes it smaller in size, suitable for more car models with lamp sizes, and easier to install. Moreover, the chuck on the car light can be adjusted 360 degrees, and a new scale is added to the chuck to finely adjust the light pattern as needed.
Overheating of LED chips at high temperatures can lead to failure, and because headlights are used in harsh environments, special protection is required to ensure reliable lifespan at high temperatures. Therefore, you can see from the tail that an active cooling system is adopted. The double ball bearing fan effectively discharges the heat generated by the light. Compared with the aluminum structure heat dissipation and braided belt heat dissipation on the market, the heat dissipation effect is better.
It is a recognized fact in the industry that the thinner the aluminum parts between the LED headlight beads are, the more light will be collected. Therefore, this LED headlight adopts single-sided double-base technology, with a thickness of only 0.6mm. The gap is made as thin as possible to resemble a point light source, so that the car lights can focus more light. And for LED car lights, its light-emitting principle is different from that of xenon lamps. It is basically the same as halogen lamps. As long as the industrial design is excellent, the lamp bowl can well ensure the car light shape, good illumination distance, and uniformity. Paving effect. Therefore, when the Istar LED lamp already has a good light pattern, there is no need to install a lens to avoid the light loss and cost factors caused by the lens.
At the same time, this LED car light also integrates an intelligent temperature control system, which can realize self-correction even in harsh working environments. That is to say, if the temperature control system detects that the surrounding environment is too hot, it will adapt to reduce the power to avoid Burn out the lamp beads.
And the installation is also very convenient, even a novice can install it in 10 minutes. Open the engine cover and pull off the dustproof covers of the car lights on both sides. Take out the original car light bulb, install the chuck first, then insert the car light, and finally connect the original car power cord without damage. To put it simply, it's the same as changing a light bulb at home. It only takes 3 steps: open the refrigerator door, unscrew the old light bulb, and then replace it with a new one. Hey, why do you need to open the refrigerator door?
Let's take a look at the actual effect comparison chart. Just look at the picture below. Can you tell which car light is a halogen light source and which is an LED light source?
It is obvious that the brightness advantage of the Juststar LED headlights is obvious, making the driver feel more at ease when driving at night; and the new product adopts the latest dual ball bearing fan cooling technology, which can effectively dissipate the headlights when the headlights are turned on for a period of time. Finally, when you try to touch the lampshade, you will not feel any obvious heat. However, with the original car's halogen lamp, the lampshade is obviously hot when you touch it.
After actual testing, I believe everyone has a certain understanding of this car light. As the strongest endorsement of the Yesda brand, it has been focusing on the field of LED car lights for 9 years. I firmly believe that this latest product can surprise the market and allow car owners to use it in their daily use. More satisfying. When car owners no longer think that replacing LED headlights is a time-consuming and labor-intensive matter, the day when LED headlights will completely replace halogen headlights and xenon headlights will not be too far away.
