In the world of energy-efficient technologies are actively used.In 2012 Austria and Germany refused to sodium lamps, totally going to the LED lamps for street lighting.The same tendency is planned in the CIS countries.LED lights are installed on highways, tunnels, railway platforms, in parks and gardens, various public and private facilities.Apply them today, many owners prefer gardens, using the elements of landscape design.After all, with their help you can not only save money, but also to create beautiful light bezels ponds and fountains, pavements, curbs and guards.With each passing year it becomes more and more aware of people owning information about this advanced electrical technology, is rapidly entering into our daily lives.If you want to join one of them and to be aware, be familiar with the material below.It will help you create a complete picture of the LED street, their device types and features of the application.
Positive and negative aspects ↑
Recall that under the outer (street lighting) means the architectural lighting and lighting of streets and roads,squares, parks, squares, gardens, open industrial facilities using appropriate (in this case LED) fixtures.
list of compelling advantages ↑
- energy savings.Lanterns with this type of lamps consume half or even two times less electricity than normal.However, their light output power is comparable with fluorescent lamps.They do not cause overloading of grid lines, saving on their repair and maintenance.
- durability.The service life with continuous use of 11 to 15 years, and only when illumination at night - up to 25 years.
- structural strength, protection from negative environmental impact.LED outdoor lighting fixtures, usually not equipped with a glass bottle, which makes them highly resistant to external influences.The case of this device is designed so that dirt, excrement of birds, debris and water can not accumulate on the surface thereof and does not impair cooling ability.They can be used in virtually any climatic conditions, in the range of operating temperatures from - 60 to + 45̊ S.
- reliability.Have anti-vandal zaschitu.Svetodiodnye lights street lighting explosion and fire, have a high contrast of light very quickly turn on and operate silently.They have no flickering.
- colors.LEDs have excellent color rendering characteristics of index and color tone can be selected for a specific application of the lamp.Their optimal parameters of light, contributing to the best concentration of drivers of vehicles on the road.In addition, it is proved that their light has therapeutic properties.
- In the LED lamps is practically no inertia: they have a good performance.This is a very significant factor, particularly important for their application in the design of traffic lights.
- This eco-friendly devices.LED lamps for street lights do not require any special disposal because they do not contain any mercury or its derivatives, as well as other harmful or toxic substances.
- Easy installation.Easy to install.On 1 lamppost can accommodate 2 such as a lamp.
detail about a number of shortcomings ↑
- The disadvantages of these devices include a high price.However, in spite of the notable initial investment, their use results in significant cost savings in the future.
- street lighting LED heat is subject to degradation.To such a lamp can work normally, it needs a high quality heat dissipation.This function is performed by the substrate on which LEDs are soldered.But if they are poorly soldered, it will lead to the formation of cavities disturbing heat removal and, as a consequence, - damage of a lamp.
- Also, these devices are very sensitive to voltage drops.If there is a power failure, the work lamp can be broken due to overheating of its body.If the body temperature and the temperature of the sealant will be equal, the device may malfunction.
- Street LED lamp can break due to dysfunction of electrodes that are indispensable in the construction of this device.The metal from which they are made, is subject to diffusion.If it happens, there is a great risk of getting metal particles to the action of the semiconductor.This can lead to device failure.
design and classification of devices ↑
device specifics ↑
Operation LED based on the principle of emission of light waves, which occurs as a result of an electrical pulse.
Street lamp with light - a kind of complex semiconductor devices, ie,LEDs are mounted in a lightweight and durable aluminum body covered with protective paint.
Street Lights structurally different from their counterparts for the premises.In accordance with the SAE (Rules ustr. Islands electrical) are mounted on supports from 4 to 11 m in height, so that the light beam was directed downward.Typically, the support 1 mounted on the lamp 2 by means of brackets of stainless steel.Apparatus suggest the possibility of adjusting the color characteristics of the radiation flux.
Types of LED lamps for street ↑
Street Lights LED may be in the form of spotlights, lights, and be represented by a decorative street lighting devices (dyurafleks, Rope, rulers and grids).
1. Spotlights.Industrial - set mainly on large objects.With their help illuminate the streets near the sports complex, illuminate the facades of buildings, open spaces, parking lots and other outdoor facilities with a large territory.Small floodlights installed in backyards.They may also have a white and colored light at various angles of radiation.
2. Lanterns.Roads, highways are usually large lanterns light reflectors, allows you to direct the light in different directions, and lamps up to 400 vatt.ya.On secondary roads used lights 150 - 250 watts.Garden and park areas, sidewalks, squares, yard area and gardens at night, illuminated by diffuse light street lamps up to 150 watts.
3. Rope lamp looks like a clear plastic tube or tape with a lot of LEDs inside, which are located from each other at a distance of 1.5 - 27.5 mm.This device is used for contour architectural lighting, landscape design for the decoration of objects (poles, trees, and so on.), Advertising lighting.Fixtures are connected by a special coupling, can be connected to a 2 x 4 channels and controller are characterized by long service life.Have varieties:
- Fixing - operate in a constant glow.
- Cheyzing - with their help made the dynamic street lighting.
- Multicheyzing - dynamic LED lighting-class "luxury".
- Chameleon - street lighting controller.
4. Dyurafleks different from other similar devices waterproof, ease and flexibility that simplifies operation and installation of the luminaire.It may be fixed to any surface and in any environment.It is often used as decorative landscape lighting.
5. The line looks thin flexible plastic tape with silicone sheath, which vertically mounted high-power LEDs.Attractive technical features are its line of low-voltage safety voltage (12 V) and a long service life.Often used as a decorative illumination advertisement.
6. Grid - a device in the form of light with LEDs in the network nodes.She is very bright, shock-proof, different efficiency and ease of installation.Its pull on a rigid frame between the supports to decorate the wall of the building or the park.It has a lot of modifications.
division to create colored light ↑
worth noting that the outdoor LED lights can emit light of different color shades, including white, the most useful and pleasing to the eye.
However, the latter is quite difficult to obtain, the methods differ.Depending on their fixtures and are classified:
- As technology RGB: in the substrate of the device are arranged blue, green and red LEDs.Definitely a plus of this technology is a very strong light output and a minus - a property of light "float" with the aging of the device.
- color mixing technology: the device is placed on a substrate LED capable of emitting in the ultraviolet range.Next to him shall be red, blue and green phosphors.After mixing the colors in the output is a white glow.Such lamps are inexpensive, but are quite easily damaged phosphors, resulting in reduced illumination quality.
- Next technology is that the blue LED yellow phosphor is applied.On the resulting blue color attached green and red LEDs.By mixing the white light is obtained.Advantages and disadvantages - like technology № 2.
- technology ZnCe semiconductors on a substrate ZnCe Semiconductor - LED is blue.As a result - we study the bluish light.Permitted work equipment at a voltage of 2.7 V. Typical resistance to electrostatic discharge.However, the life of their small.
organizing street LED lighting ↑
Regardless of whether produced LED street lighting, large objects or small gardens, carried out the work on a standard pattern consisting of a set of measures:
1. First, it is necessary that experts made lighting project, which includes:
- calculation of brightness, brightness and other parameters in accordance with SNIP and PUE.At this stage of working on the issues arrangement of luminaires, lighting control technology, etc.
- drawing lighting schemes;
2. According to the project chosen lighting.
3. Then, a mounting hardware.
4. It is mandatory maintenance of these devices
Video: interesting lighting options ↑
As you can see, the choice of outdoor LED lamps is quite rich.They can effectively decorate any private ownership and thus decent save.It is possible that LED technology will be the best solution to the problem is the lighting of your possessions.She definitely deserves attention, and it is obvious that in the near future, its use would be widespread.