High-power
Led Street Light, as the name implies, is a street light with a single power greater than 1 watt and a new type of LED semiconductor light source. The current standard for
LED Street Lights is generally 0.48, which is an average illuminance of uniformity of road surface illuminance, which is greater than the national traditional standard of 0.42. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX. The current market street lamp lens material is an improved optical material, with a transmittance of ≥93% , Temperature resistance -38-+90 degrees, anti-UV ultraviolet rays, and no change in yellowing rate for 30,000 hours. It has very good application prospects in new urban lighting. The depth of dimming, and the color and other characteristics will not Changes due to dimming.
Applicable places:
Urban roads, sidewalks, squares, schools, parks, courtyards, residential areas, factories and other places that require outdoor lighting.
The key to high-power LED street lights is good heat dissipation and stable driving power (constant current, constant voltage)
Solar LED street lights, as the name suggests, use solar silicon panels as the power supply, LED street lights
The standard of LED street light is generally:
1. The general conversion rate of solar modules is 15%, (monocrystalline silicon solar modules)
2. The average illuminance of uniformity of road surface illuminance is 0.48, which is greater than the national traditional street lamp standard of 0.42. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX.
3. The street lamp lens material in the market is an improved optical material, with a transmittance of ≥93% and a temperature resistance of -38 to +90 degrees.
The average illuminance of uniformity of road surface illuminance is 0.48, which is greater than the national traditional street lamp standard of 0.42. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX.
advantage:
1. The characteristics of the LED street lamp itself-the one-way light, no light diffusion, to ensure the light efficiency;
2. The LED street lamp has a unique secondary optical design, which irradiates the light of the LED street lamp to the area that needs to be illuminated, and further improves the light efficiency to achieve the purpose of energy saving;
3. The efficiency of the LED light source has reached 100lm/W, and there is still a lot of room for development, with a theoretical value of 250lm/W. The luminous efficiency of high-pressure sodium lamps increases with the increase of power. Therefore, the overall luminous efficiency of
Led Street Lamps is stronger than that of high-pressure sodium lamps;
4. The light color rendering of LED street lamps is much higher than that of high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 23, while the color rendering index of LED street lamps is above 75. From the perspective of visual psychology, the same brightness can be achieved. The average illuminance of LED street lamps can be Reduced by more than 20% than high-pressure sodium lamps, (refer to the British principle of lighting standards);
5. The light decay of LED street lights is small, less than 3% in a year, and it can still meet the road use illuminance requirements after 10 years of use, while the high-pressure sodium lamp has a large decay, which has dropped by more than 30% in about a year. Therefore, LED street lights are in The power design can be lower than that of the high-pressure sodium lamp;
6. The LED street lamp has an automatic control energy-saving device, which can achieve the greatest possible reduction in power and energy saving under the condition of meeting the lighting requirements at different times;
7. LED is a low-voltage device. The voltage to drive a single LED is a safe voltage. The power of a single LED in the series is 1 watt, so it is a safer power supply than the use of high-voltage power supplies. It is especially suitable for public places (such as street lights). Lighting, factory and mine lighting, automotive lighting, civil lighting, etc.);
8. Each unit LED chip has only a small volume, so it can be prepared into various shapes of devices, and is suitable for variable environments;
9. Long lifespan: It can be used for more than 50,000 hours and provides three-year quality assurance;
10. High light efficiency: Using chips ≥100LM, it can save energy by more than 75% compared to traditional high-pressure sodium lamps;
11. Easy installation: no need to add buried cables, no rectifiers, etc., directly install the lamp head of the street lamp on the lamp pole or nest the light source into the original lamp shell;
12. Excellent heat dissipation control: the temperature in summer is controlled at about 45 degrees, and passive heat dissipation is adopted;
13. Reliable quality: All circuit power supplies use high-quality components, and each LED has a separate over-current protection, so there is no need to worry about damage;
14. Uniform light color: No lens is added, and the uniform light color is not sacrificed to increase the brightness, so as to ensure the uniform light color without aperture;
Based on the above principles, the energy-saving effect of high-power LED street lamps is significant, and it can save more than 60% of electricity instead of high-pressure sodium lamps;
Low maintenance cost: Compared with traditional street lamps, the maintenance cost of LED street lamps is extremely low. After comparison, all input costs can be recovered in less than 2 years.
High-power LED street lights street lights:
High-power LED street lamp technical indicators air convection heat dissipation type high-power LED street lamp lamps.
Air convection heat dissipation type high-power LED street light fixtures. Its purpose is to solve the heat dissipation problem of high-power
LED Lamps and propose a high-power LED street lamp lamp with air convection heat dissipation, which includes a lamp head assembly, a lamp heat sink assembly and a lamp tail assembly. The lamp heat sink assembly is an arc-chord cylindrical shell. , Open at both ends, the two sides of the arc cylindrical surface are vertical surfaces, and the vertical surface is also provided with array of through holes. In the inner cavity of the arc-chord cylindrical shell, there are 4-10 axially arranged and aligned with the arc cylindrical surface and the chord cylindrical surface. The two vertical sides of the vertical rib heat conduction plate and the vertical rib heat conduction plate and the arc-chord cylindrical shell are also provided with array through holes. The vertical rib heat conduction plate and the two vertical ribs on both sides of the arc-chord cylindrical shell are also provided with array through holes. 5-11 heat dissipation channels for hot air flow are formed in the lamp heat sink assembly. The utility model has the advantages that there are multiple heat dissipation channels through which hot air flows in the internal cavity of the heat dissipation body, and the vertical rib heat conduction plate also serves as a heat dissipation surface, the heat exchange surface is increased, and the heat discharge efficiency is high. Air convection heat dissipation type high-power LED street light
Shape structure design of high-power LED street lamp
The appearance design is novel, the structure is ingenious, and full of modern flavor, which is in line with the trend of the times. In terms of heat dissipation, we creatively adopted the air convection cavity aluminum radiator design. The upper and lower heat dissipation surfaces of the radiator are connected by eight vertical ribs. , Front and back pass
LED street light (air convection heat dissipation type) LED street light (air convection heat dissipation type)
At the same time, there are air convection holes on the left and right sides, which strengthen the air circulation inside the cavity and facilitate the discharge of heat, thereby effectively improving the heat conduction efficiency of the LED light source. The above unique heat dissipation design scheme ensures the safe working temperature of the high-power LED light source below 45°C.
High-power LED street light metal bolt type
Independent research and development and design of metal bolt type high-power LED light source. In order to improve the stability of the product, we use high-quality LED light-emitting chips imported from the United States. The LED light-emitting chips are directly encapsulated on the top of the nut of the metal bolt, and the LED metal bolt is directly screwed on the aluminum radiator when the product is assembled. Therefore, the LED and the radiator are effectively integrated, which changes the current situation of traditional high-power LED light sources using thermal silica to conduct heat, greatly improves the heat transfer efficiency between the LED and the aluminum radiator, and effectively guarantees The service life of the LED light source is greater than 60,000 hours. At the same time, high-quality Taiwanese phosphors are used to make a single LED brightness above 80 lumens; and there are a variety of color temperatures to choose from, which can meet the needs of different color temperatures in different occasions.
High-power LED street lamp secondary optical system
It adopts a unique secondary optical lens module and "belt-shaped spot" light output design. The length of the light spot is determined by the angle of the LED light, so as to reasonably control the light distribution, avoid light superimposition and waste, reduce light loss, and realize the connection of the strip light spots between the light poles, so that it meets the national standards. Various brightness indicators. While ensuring the ideal road surface illumination and uniformity, it eliminates LED glare and protects the LED light source.
The optimization of high-power LED street lamp drive circuit
DC 9V-30V or AC 84V-264V wide voltage input drive circuit design. The precise constant current output enables each high-power LED light source to work at a constant rated current, with low line loss and aging coefficient, electrical conversion efficiency ≥85%, and precise constant current output to ensure the service life of the LED light source.
Modular design of high-power LED street lights
The light source adopts a modular design scheme to achieve the best matching of ground illuminance and power. By increasing or reducing the number of light sources, different road width and illuminance requirements are met, achieving the goal of not only meeting the lighting requirements of the city without wasting electric energy.
LED lighting technology is becoming more and more mature, and the efficiency of high-power LED light source has reached 80lm/W or more, which makes it possible to transform urban street lighting energy-saving. LED street lamps, especially high-power LED street lamps, are impacting the traditional street lamp market at a rapid pace.
As the name implies, high-power LED street lights are street lights with a power greater than 30 watts and adopting a new type of LED semiconductor light source. The standard of LED street light is generally the average illuminance of uniformity of road surface illuminance (uniformity of road surface illuminance) 0.48. The spot ratio is 1:2, which is in line with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX. The street lamp lens material on the market is an improved optical material with a transmittance of ≥93%. Temperature resistance -38-+90 degrees, UV resistance, and no change in yellowing rate for 30,000 hours. Solar LED street lights refer to LED street lights that use solar silicon panels as the power supply.
The standard of LED street light is generally:
1. The conversion rate of light is 17%, (the solar energy per square meter is 1000W, and the actual utilization efficiency is 170W)
2. The street lamp lens material in the market is an improved optical material, with a transmittance of ≥93% and a temperature resistance of -38 to +90 degrees.
3. LED street lamp lens, mainly used for LED street lamp lens, the spot is rectangular, the material is PMMA optical material, the transmittance is ≥93%, the temperature resistance is -38-+90 degrees, and the anti-UV yellowing rate is 30,000 hours without Changes etc.,
4. The average illuminance of uniformity of road surface illuminance is 0.48. Spot ratio 1:2
5. Comply with the road illuminance. (The actual 1/2 center spot reaches 25LUX, the 1/4 center light intensity reaches 15LUX, the lowest light intensity at 16 meters away is 4LUX, and the overlapping light intensity is about 6LUX.
6. It has very good application prospects in new urban lighting. Dimming depth, and the color and other characteristics will not change due to dimming.
7. Adaptation humidity: ≤95%
8. Quality assurance: 2 years
market expectation
Despite the rapid development of LED street lights, the standard of LED street lights is relatively lagging behind. Globally, there are not all LED street lamp standards, such as LED street lamp standards in Europe. In fact, the standards for LED street lights in different regions are not the same in terms of indicators. The LED street lights we make must meet the requirements of the sales area in terms of standards. Therefore, bidding for LED street light projects requires in-depth study of local LED street light standards. The only way is this Will have a place in the fierce market competition.
As LED high-power street lights are installed outdoors, they are often attacked by unexpected weather and have high requirements for stability and safety. Special attention should also be paid to the installation.
Installation method of high-power LED street light
1. When installing LED high-power street lights, it is recommended to use guide sleeves for positioning.
2. Be sure not to install LED high-power street lights when the pins are deformed.
3. When deciding to install in the hole, calculate the dimensions and tolerances of the hole spacing on the face and the circuit board to avoid excessive pressure on the bracket.
4. Before the soldering temperature returns to normal, the LED must be protected from any vibration or external force.
5. Pay attention to the arrangement of the outer wires of various devices to prevent incorrect polarity installation. The device should not be too close to the heating element, and the working conditions should not exceed its prescribed limits.
Precautions
When cleaning the colloid with chemicals, you must be especially careful, because some chemicals can damage the surface of the colloid and cause discoloration, such as trichloroethylene, acetone, etc. It can be wiped and dipped in ethanol for no more than 3 minutes at room temperature.
