2013年6月 – 第3页 – LED Lighting Blog

LED tunnel light application of high value

led tunnel lamp is a light efficiency energy saving lamps, high strength, gas discharge lamp as the light source, high luminous efficiency, long life can be achieved with different multipurpose mirror lighting; and after softening, and do not engender dizzy projects or other discomfort. Ballast selection overheating protection technology to ensure lamp life. Imported high purity anodized aluminum mirror reflector material made by precision optical design, power factor greater than 0.9, reflective, high efficiency, good transparency, energy saving and environmental protection.

LED tunnel lighting with conventional contrast LED is a solid-state semiconductor devices, which can be converted directly into electricity to light, compared to traditional road tunnel lighting (sodium, metal halide, etc.), LED light source has the following advantages:
One, light is small: If conditions are favorable in the case of cooling, LED front 10000h to Masamitsu failure, before 10000h light fades to 3% a 10%, 30% before 50000h basic, far below the normal road lighting, LED more stable.
Second, high color: general LED color is about 70 ~ 80, if the words of trichromatic phosphor higher; generally HPS is 20 to 35, low pressure sodium lower, so even the traditional high brightness light source for LED, but the visual effect is worse than the LED, “not the brightest, but to see most clearly,” This should be the development of an application of the LED light source direction.
Third, life: LED life span than the general road tunnel lighting, is now generally higher than 50000H.
Fourth, the price: LED lamp Although high prices than traditional lighting, but with the manufacturing technology matures, its price dropped significantly in constant current, the high and low pressure sodium lamps generally set the price of 2,000 yuan, while its cable and other accessories Price is higher than the LED cable and other expenses.

In addition, LED lamps have a high maintenance factor, good safety performance, no flicker and energy saving advantages.
Tunnel lighting design factors to consider are the length, linear, interior, road types, with or without sidewalks, roads link the structure, the design speed, traffic volume and car types, etc., but also consider the light source color, lighting, arrangement, lighting level, on the outside brightness and eye adaptation status, tunnel lighting design is to solve the issue of this series.
Energy is a light tunnel lighting, lamps, lighting methods, requests, energy saving and management including lighting design and energy saving aspects, lighting design is the most important energy saving measures, which include the use of innovative and reliable design and reasonable standard value, and the use of efficient lighting, efficient lighting, increasing the light reflectance and lighting control and energy saving. Compared with the traditional LED light source, the biggest advantage is energy and stability, so the advantages of LED-based and features to improve the efficiency of the LED chip, reasonable light fixture design to enhance the overall performance, LED tunnel lighting is needed to address the important issues.
LED tunnel lighting effect is a measure of the efficiency of the merits of its tunnel light basic indicators, LED tunnel lights in accordance with practical requirements, they need to reach a certain level of light efficiency to meet the replacement of traditional road lighting sodium, metal halide needs.

Maintenance-free LED explosion proof lights Scope

Maintenance-free LED explosion proof lights Scope:
1, for a Zone 2 hazardous locations or Zone 20 .21 .22 District District contingent explosive dust or place;
2, suitable for Ⅱ A, Ⅱ B, Ⅱ C class containing explosive gas or vapor environment;

3, for explosive gas mixture temperature groups: T1 ~ T6;
4, widely used in oil exploration, practicing oil, chemical, military, and other hazardous environments and offshore oil platforms, oil tankers and other dangerous workplace and scene lighting purposes;
Maintenance-free LED explosion proof lights Features:
1, lamp housing is made of aluminum die casting, surface spray; thermal design and the use of specialized structures to ensure long-life LED light source to run;
2, lamps exposed fasteners made ??of stainless steel, fitted with rubber gasket, reliable seal, waterproof and dustproof anti-corrosion and strong;
3, built-in rubber. Wires sheath of plastic parts all adopt high temperature resistance, flame resistance compression fittings, safer and more reliable;
4, the light source adopts imported Epistar LED chip, has a long service life, high luminous efficiency is very high (the company’s highest luminous efficiency over 120.LM / W), soft light, good shock resistance, etc.;
5 glass lens using a special glass, high transmittance; can withstand more than 7J impact resistance, high strength;
6, for pipe hanging lamps. Ceiling. Suction wall. Pole type. Scaffolding variety of installation methods;

do you understand LED Floodlight

First, what is LED Floodlight
LED Floodlight (LED Down light) also known as spotlights, projection lamps, spotlights, etc., mainly used for architectural lighting purposes, as well as commercial space lighting, decorative element heavier, it has a round shape is also well-, because generally have reason to consider the heat, and therefore its shape with the traditional floodlight there are some differences.

Second, LED flood light features:
Currently on the market used LED Floodlight basically use 1W high power LED (each LED components are made ??of PMMA with a high light efficiency lens, whose main function is quadratic assignment LED light, that is, two secondary optics), there are a few companies because cooling technology handled well, and use the 3W even higher power LED. Suitable for large occasions cast lighting, building lighting.
Spotlights what are the things to note1, high-purity aluminum reflector plate, the beam the most accurate reflection the best results.
2, symmetrical narrow-angle, wide angle and optical systems with asymmetric.
3, replace the lamp behind the open type, easy to maintain.
4, lamps are easy to adjust with scale plate illumination angle.

LED Floodlight application environment

With the continuous improvement of people’s lives, growing spiritual and cultural concept note by the public, so following the traditional single light-colored metal halide, high pressure sodium lamps, the new launch led flood light! RGB Spotlights! Colorful led flood light! Through the built-in micro-chip control, in a small engineering applications, you can not control use, to achieve a gradual, transition, color flashing, random flashing, alternating gradient and other dynamic effects can also be controlled by DMX, to achieve the chase, scan results. There are two types of products, one type of chip combined with power, and the other using high-power single-chip, the former more stable performance, high-power single product structure, huge, suitable for small-scale cast light irradiation, which can reach a very high power, large area can cast light over long distances. Guan Jian is more, LED flood light light effect according to the requirements of different environments, light angle from 8 to 120 degrees can be selected, rich colors, red, yellow, green, blue, cyan, purple, white, colorful alternating, full-color option.

LED Floodlight through the built-in microchip, in a small engineering applications, you can not control use, to achieve a gradual, transition, color flashing, random flashing, alternating gradient and other dynamic effects can also be controlled by DMX, realize the chase, scan results.
Currently, the main application areas are: single building, historical buildings exterior lighting; light outside the building through lighting, indoor local lighting; green landscape lighting, billboard; medical, cultural and other specialized facilities lighting; bars, discos, etc. entertainment atmosphere lighting, with the LED technology continues to evolve, I believe will one day be able to replace the traditional floodlight.

The advantage of LED High Bay Light

As we all know, the lighting energy consumption occupies a very important part of the total Energy consumption. For example, in a 40,000 square meters factory building, electricity for lighting load is about 400KW, therefore, the choice of lighting in the factory, how to achieve energy saving, environmental protection is placed in the plant designers an important issue. Using new LED light source based LED High Bay Light, in addition to energy saving, it also has a long life, fast response time, pure light color light concentration, etc.

New technologies, new materials and new technology constantly applied to the design of high power LED light source for high-power LED lighting design has laid a solid foundation. Due with the application of the LED light source with greater product differentiation, the design, testing, and other standards the introduction of a certain lag, thus resulting in products from different manufacturers in the structure, performance and other aspects of interchangeability poor. Meanwhile, LED lighting product is a machine, light, electricity and other factors of integration, and its design is related to many areas of technology.
LED High Bay Light main advantages are the following aspects:
As LED light source is the heart of the unique advantages, LED High Bay Light The reason can be used in high security situations in which explosive flammable, but also in rugged LED mining lamp itself fully equipped.
First, LED High Bay Light uses imported chips, LED packaging structure optimization, to reach low-light failure and high light efficiency. Followed by the adoption of the position locking fixture installation, shock protection conditions are still no attack stance temporary assignments change.
There is also light alloy light body materials to build adoption, special sealing and surface insulation layer processing, to protect the lamp even in wet, cold and so harsh conditions will never be eroded, will never rust.
The last is the adoption of pedestal LED High Bay Light and pendant mounting so many kinds of forms, can be a good fit with the different working environment.

What are the characteristics of LED light source

Currently has the capacity to produce LED and LED lighting manufacturers also one of the few, different manufacturers use different quality LED LED lighting is caused by an important reason for different prices. What are the characteristics of the LED light source?

(1) Voltage: led using low voltage power supply, power supply voltage between 6-24V, varies depending on the product, so it is a more secure than using a high voltage power supply, especially for public places.
(2) Performance: consumption of energy compared with incandescent light efficiency 80% reduction.
(3) Applicability: small, small piece of each unit LED 3-5mm square, it can be prepared into various shapes of devices, and for the environment variable.
(4) Stability: 100,000 hours, the light fades to the initial 50%.
(5) Response time: the incandescent millisecond response time, LED lights nanosecond response time.
(6) of environmental pollution: no harmful metal mercury.
(7) Color: change the current color, light-emitting diodes by chemical modification methods to easily adjust the material’s band structure and band gap, to achieve multi-color light orange red Huanglv Lan.
(8) Price: LED’s price is expensive, compared to incandescent lamps, the price of a few LED incandescent lamp with a price considerably.

The different of LED spotlights and LED downlights

LED spotlights and LED downlights is to use light-emitting diodes as a light source LED lighting

Features:
Very long life: generally in the 50,000-100,000 hours in between
High energy concentration: concentration in a smaller wavelength window and high purity.
Environmental protection and good: LED spotlights in the production process do not add “Mercury,” and does not need inflated, no glass shell, impact resistance, and resistance to shock.
How to distinguish LED spotlights and LED downlights?
CPV: Spotlight stronger than downlights.
Downlight is a relative to the normal surface mounted luminaires, lamps with condenser, typically used for general lighting or auxiliary lighting.

Spotlight is a highly condensed lamps, the light from it is having to specify a specific target. Mainly used for special lighting, such as to emphasize a lot of flavor or very new place.
Directivity:
Ceiling lamp light source direction can not be adjusted.
Spot light source direction can be adjusted freely
Application position;
LED downlights are generally mounted in the ceiling, because the light is softer, played the role of general lighting.
LED spotlight can generally be divided into orbital, point hanging and embedded variety, mainly for the need to put emphasis or performance, such as video walls, paintings, jewelry, etc., can play to enhance the effect of light rhyme.

LED lighting industry, a critical period

There are approximately 10 billion incandescent lighting, they consume about one-fifth of the world’s energy. With the current “go green” ecological trends, in order to save energy, many people are looking for ways to save our planet. Consumers from incandescent to energy-saving lamps is converted in the late 1990s, to the cities and towns where people offer discounts mechanisms induced conversion. Attract consumers who are “going green” to achieve cost savings on the bill.

However, for many people, this is not always a positive experience, for example, they want the light dimmed, and energy-saving lamps can not pass damper to adjust light and dark, energy-saving lamps contain small amounts of mercury, require proper handling of hazardous substances. Many bulbs will be recycled and properly handled, but most were buried to the garbage dump, which will result in groundwater contamination. Energy saving lamp low adoption rate in the U.S. is estimated that only about 11% of households use. In the past five years, energy-saving lamp technology has greatly improved, but still not the best solution. Kaiou ho Lighting LED energy saving lamp technology for commercial and residential markets LED lighting devices is increasing rapidly. Promises long life, light better, and more energy efficient, these are the LED energy-saving lamps to replace incandescent and a major factor. LED consumes its predecessors only one-third of the energy incandescent. It can make full use of smart sensors and microcontrollers, to really bring additional energy savings and economic benefits are truly “green” technology. Some experts expect that in the future less than a year’s time, most consumers are willing to use LED lighting.
In the next few years, LED ceiling lamp, LED downlight LED lighting in the lighting industry will usher in a crucial moment in the history of the EU countries, Canada, Brazil and the United States, many states will gradually take measures to make incandescent bulbs from the market on exit. U.S. local utilities have begun to introduce LED lamps incentive plan, which will accelerate the LED bulb lighting with speed. These stimulus measures will make consumers buy the high cost of new light, which is about five times the cost of energy-saving lamps.

LED bulb incandescent What are the advantages relative

LED bulb is designed to replace incandescent spherical energy-saving products, such products currently on the market, mostly in less than 10 watts (1 watt to 10 watts specifications), to replace the bulb wattage at 60 watts and below .

led replacement light bulbs in new market
LED lights sold commercially integrated optical efficiency of 60 — 100 lm / W, CRI 60 — between 90, 2700 — 6500k color temperature between life 20,000 — 50,000 hours, each manufacturers of LED light indicators are not the same, for the species, many brands of LED lighting products, how do we choose the LED lamps do they need? General customers may not understand some of LED lamps expertise in order to make the average person to understand the performance of LED lamps, the following will make some brief.
1, LED lights integrated light efficiency means a finished luminous efficiency of LED lights, which at the rated voltage, the LED lights emit a total luminous flux divided by the total power consumption of the LED lights, the resulting value that is this LED integrated luminous efficiency, with lumens / watt that higher values ??indicate that the light energy better. The more power, you should select lumens / watt high LED lamps.
2, the color index is set to 100, generally considered :80-100, the color is good, 50-60 —- 79 CRI general, <50, the color is poor. Should be selected high CRI LED lamps.
3, Color temperature is measured in Kelvin (K), the red light source color temperature of about 800 — 900K, yellow-white color temperature of about 3000K or so, about a white light source color temperature of about 5500K, the color temperature of the light source in a light blue 8000 — 12000K . Color temperature selection according to individual preferences, some people like to warm, then the color temperature of about 3000K lights on for him, like daylight people 5000K — 6500K color temperature of light can meet his requirements. Like the cool colors of the election 8000 — 12000K LED lights.
4, LED lamp life is the luminous flux of emitted light was 100%, after a period of use, the light emitting efficiency is decreased, the current dropped to 70% of the initial luminous flux, the number of hours of the lamp life, Select the number of hours lamp life course, the longer the better.
5, LED temperature rise, the General License 25 ℃ — 30 ℃, specific to the LED light heat sink temperature: ambient temperature plus temperature rise is permitted on the heat sink temperature. When the ambient temperature is 37 ℃, LED lamp heat sink temperature of 37 +30 = 67 ℃, if you exceed this temperature, the temperature rise permitted this lamp is substandard. LED lamp operating temperature is the enemy, of course, the smaller the better heating, indicating a high luminous efficiency of LED lights, LED lights in the selection of the same lamp power can be lit simultaneously for comparison. The other is the LED light heat sink temperature warming faster Description LED light thermal conductivity, high efficiency, low thermal resistance.
6, such as their conditional, it can also be used to measure the illumination LED illumination table, choose a level, all the LED lights are tested at this height, LED lights just lit measure illuminance, 30 minutes or 60 minutes after the then measuring illumination, constant or variable illumination light is preferably small, variation in the description of the lamp heat is not good, a large resistance, the chip temperature rises, the luminous efficiency drop caused illuminance becomes small, this light can not be used.
7, with the LED fluorescent tube lamp replacement time to note that the current domestic production of LED lamps are without heat sink, this LED lamp cooling condition is not good, ordinary 30-watt fluorescent lamp LED lamp length power is only 17 dig around the light emitting element is assembled with a small straw hat LED strip PCB printed circuit board via electronic potting glue in a transparent plastic tube. I believe that this LED lamp life may be less than the required number of hours of life, the best selection of LED lamps with radiator, using them more reliable, abroad with aluminum heat sink LED tube products. Believe will develop such domestic radiator with LED Tubes, to meet the various needs of users.
8, in addition to the above indicators, choose LED lights should be selected on the eyes no glare, soft lighting some, that the eye will not feel uncomfortable to see the light, it is best to have its milky lampshade LED lights emit light softer. LED lights in use switching power supply will not have any impact on light, light switch does not affect the number of life, which is the biggest difference with the fluorescent lamps, LED lights are also an advantage.

LED grow light on plant growth

The effects of different wavelengths of light for photosynthesis in plants are different, the photosynthesis of plants need light, the wavelength is about 400-700nm. 400-500nm (light blue) and 610-720nm (red) are the biggest contribution for photosynthesis.

Blue (470nm) and red (630nm) led, just can provide the desired plant light, therefore, LED street lamps, an ideal choice is to use these two kinds of color combinations. In the visual effect, plant light red and blue combine the pink color.
Blue light can promote the growth of leaves; red light helps to blossom the fruit and prolong the florescence!
LED grow light the proportion of red and blue LED is general 4:1–9:1, usually optional 4-7:1.
Plant lamp for plant growth, leaf height distance is 0.5 meters; every continuous irradiation of 12-16 hours can completely replace the sun.
Semiconductor lighting configurations are most suitable for light source for plant growth.
According to the proportion of settings, Light color can make strawberry, tomato taste sweeter, and more rich nutrition. Irradiation with light Ilex seedlings is the imitation of plants in the outdoor photosynthesis. Through the green plant chloroplast photosynthesis, use the solar energy, carbon dioxide and water into the storage of organic energy, and release oxygen process. The light from the sun is composed of different colors of light; different colors of light growth can produce different effects on plant.
LED light source is also called semiconductor light source, the light source wavelength is narrow, so it can control the color of the light. Separate irradiation on plant use, and improved plant varieties.
Through the experiment to the purple light Ilex seedling, but the blade is very small, the root is also shallow, a pair of malnutrition. Partial yellow light not only small seedlings, leaves seemed lifeless. But Holly growth in red, the blue light is the best, not only strong, but also very well-developed root. The LED street light red lighting and blue light bulb is configured according to the ratio of 9:1.
Results show that, the 9:1 red and blue is most favorable for plant growth, after the light irradiation, strawberry and tomato fruit, sugar and vitamin C content increased significantly, hollow phenomenon will not occur. Continued irradiation for 12 – 16 hours a day, and grow in the light environment, the strawberry, tomato are more delicious than ordinary greenhouse fruit.

LED Lighting Blog

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月份：2013年6月