Led Public lighting(CLASSICLEDLIGHT) is an important part of city lighting. In the past, traditional public lighting was often used. This kind of high-pressure sodium lamp emits 360 degrees of light, and the defect of large light loss causes a huge waste of energy.

At present, the global environment is deteriorating day by day, and all countries are developing clean energy. Moreover, with the rapid economic growth of the nation, the contradiction between energy supply and demand for LED public lighting has become increasingly prominent in our country, and the country's power supply has begun to face a serious shortage. Energy conservation has become an urgent problem to be solved. Therefore, it is of great significance to develop new LED public lighting with high efficiency, energy-saving, long service life, high color rendering index and environmental protection for urban lighting energy conservation.

LED public lighting is closely related to people's production and life. With the acceleration of most urbanization processes in China, LED public lighting has gradually entered people's field of vision with its advantages of directional lighting, low power consumption, good driving characteristics, fast response speed, high anti-seismic capability, long service life, and environmental protection. It has now become the world's new generation of energy-saving light sources with the most advantages of replacing traditional light sources. Therefore, LED public lighting will become the best choice for energy-saving reconstruction of road lighting.

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There are many different ideas in the public lighting(CLASSICLEDLIGHT) industry about what is good advice and what is bad. Here's a quick overview of some of the bad public lighting recommendations we've heard and why.

1. The light level does not matter

Light levels are important for any public lighting project. If you don't see what you need, then the light is useless. The level of light needs to be considered. If this is a sign, people need to be able to read it. If it is safe and secure in the parking lot is the main concern. The level of lighting varies from project to project and must be specific to the task. You don't want your backyard to light up like noon in the afternoon, but you don't want the parking lot to be so dark that you can't find them if you put down the keys at night.

2. Color doesn't matter

Have you seen the yellow lights seen along the highway? They are very hard on your eyes compared to the refreshing white light. You are used to seeing things during the day, the sun is about 5900-7500 Kelvin. In the evening, you don't need the sun to shine on you, but you want to see the eyes as close as possible to natural light. With amber low-pressure sodium lamps, you can hardly tell the color of the car, but the LEDs produce brighter light, making it easier to identify colors, shapes, and details. Of course, under environmental conditions such as coastal areas, low-pressure sodium or amber lamps must be used to reduce the impact on wildlife.

3. The higher the wattage, the better the light

Each application requires a different level of public lighting, but higher wattage light does not always produce better light. LEDs provide amazing light at lower wattages than any other type of lamp. You also don't want to have a huge light on a small sign, or a huge high-power floodlight, which can make travelers feel blind. Conversely, using the correct wattage light to provide a specific task of public lighting will save money because no energy is wasted. Your eyes will also be easier.

4. You need full glare all night long.

For security reasons, we need glare for public lighting all night. However, many applications allow for dimming options. In some time of the night, when no one is there, wasting energy on full-intensity lighting is a waste. Conversely, if the area still requires lighting, it is now possible to dim the fixtures with LEDs, saving money while still providing some public lighting. When there are people in the area, the area can even set up a motion activator to restore the light to maximum intensity. A sudden return to full intensity will also alert nearby people that someone is triggering the light.

So you have it. Do you have any suggestions about public lighting?

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After the LED street light is turned on for a long time, the temperature inside the LED light will gradually rise. If the heat generated cannot be dissipated in time, it will have a great impact on the service life of the street light. Will cause led street light fixtures and street light heads damaged. The following is an analysis of the factors affecting the temperature of Led street lights Manufacturers(CLASSICLEDLIGHT).

LEDs also generate heat during operation, depending on the overall luminous efficiency. Under the action of external electric energy, the radiation of electrons and holes recombines to produce electroluminescence, and the light radiated near the PN junction needs to pass through the semiconductor medium of the chip itself and the encapsulating medium to reach the outside (air). Comprehensive current injection efficiency, radiation luminescence quantum efficiency, the external light extraction efficiency of the chip, etc., finally only 30-40% of the input electrical energy is converted into light energy, and the remaining 60-70% of the energy is mainly caused by non-radiative recombination lattice vibration. Formal conversion of heat.

Whether the LED light works stably, the quality is good or bad, and the heat dissipation of the light body itself is very important. The heat dissipation of the high-brightness LED light on the market often uses a natural blade heat sink to dissipate heat, and the effect is not ideal.

The main structure of LED lights using LED light source is composed of: LED, heat dissipation structure, driver, lens and other parts. Therefore, heat dissipation is also an important part. If the LED does not dissipate heat well, its life will be affected. Thermal management is a major issue in high brightness LED applications. Since the p-type doping of the group III nitride is limited by the solubility of the Mg acceptor and the higher starting energy of the hole, heat is particularly easily generated in the p-type region, and this heat must be dissipated through the entire structure on the heat sink; The heat dissipation path of the LED device is mainly heat conduction and heat convection; the extremely low thermal conductivity of the substrate material leads to an increase in the thermal resistance of the device, which causes a serious self-heating effect and has a devastating effect on the performance and reliability of the device. The effect of heat on high-brightness LEDs. The heat is concentrated in the chip with small size, the temperature of the chip rises, causing the non-uniform distribution of thermal stress, the luminous efficiency of the chip and the lasing efficiency of the fluorescent powder to decrease; when the temperature exceeds a certain value, the device failure rate increases exponentially.

According to research data, the reliability drops by 10% for every 2 °C rise in component temperature. In the LED lighting system composed of multiple LED strings and parallel arrangement, the problem of heat elimination is a problem that has always been concerned in the industry. Addressing thermal management issues has become a primary factor in high-brightness LED applications.

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Led Public lighting(CLASSIC) cooling problem has been plagued by the developers of the led lighting industry, the current lamps are basically using an aluminum alloy with inserts as a radiator. The heat dissipation effect of this heat sink is not ideal, and the heat sink usually reaches a higher temperature. As a supplier of the public lighting industry, the radiator industry has specially developed led public lighting radiators, combining the following aspects:

1. Breaking through the problem that the existing finned aluminum radiator has poor heat dissipation effect.

Most of the existing ceiling light lamps use finned aluminum as a heat sink. The heat dissipation effect of this heat sink is not ideal, and the heat sink usually reaches a higher temperature.

2. Insulation heat-dissipating plastic is used instead of aluminum alloy to make heat sink.

In 2009, Korea has developed an LED-insulated heat-dissipating plastic that increases the heat radiation capacity by 4-8 times while maintaining the heat dissipation capacity and the aluminum alloy. The LED heat sink made of this heat-dissipating material can greatly improve the overall heat dissipation effect.

3. Using the principle of liquid convection, it provides a ceiling light with good heat dissipation performance.

The heat absorbed by the coolant in the liquid storage tank installed in the lampshade is absorbed from the lampshade, and the natural convection between the two liquid storage tanks of different heights is utilized to dissipate the heat absorbed by the coolant from the lampshade. So that the lampshade of the ceiling light is well cooled.

4. It can be rotated flexibly for easy installation.

Since the coolant convection pipe connected between the two liquid storage tanks has a bellows structure, and the bellows structure is retractable and bendable, it does not hinder the flexible rotation of the lamp cover and is also easy to install.

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