日期：2012年5月25日

what is an led light bulb from Eneltec?

Just a symbol of human civilization, and the LED street light is the new light source in the 21st century, the LED is very much in line with modern ideas: green, health, environmental protection, energy saving, long life. Then, what is an led light bulb? Although the LED compared to the incandescent lamp has a stronger adaptability and life, but in the application and use should be noted that the following requirements to ensure the LED can be a stable, long-term work properly. the voltage and current Not recommended the parallel use of the LED, because even the same model, the LED operating voltage of the same batch have some differences, unless to do a current sharing. Super bright white LED is installed, have anti-static facilities, ultra bright white LED damage by static electricity even when the naked eye can not see out, will reduce the service life. If the LED operating voltage changes 0.1V, then the operating current of 20mA about possible changes. Typically using a series limiting resistor can also use a simple constant voltage circuit, the aim is to achieve automatic pressure limiting current limiting to prevent damage to the LED Grow Lights.  what is an led light bulb? Ordinary LED peak current of 50 ~ 100mA reverse voltage of about 6V LED application to pay attention to when designing a circuit, the peak voltage and current do not exceed this limit. (Special except for high power) when the peak voltage of the circuit is too high may damage the LED. the welding conditions A soldering iron: Manual welding, soldering with a soldering iron and requires less than 25W (up to no more than 30W) soldering iron, and the temperature of the soldering iron must be kept no higher than 300 ° C is generally recommended in the 260 ℃. Soldering time not more than 3 seconds. dip soldering: Requirements of cutting-edge temperature of 260 ° C dip soldering, dip soldering time is not more than five seconds, the location of the dip soldering at least 2 mm from the gel. what is an led light bulb from Eneltec? what is an led light bulb? Note: After welding, the temperature of the LED products down to room temperature be handled with care. Do not use hard objects and sharp objects to scratch, Sassafras, touch, squeeze, press the LED.

Why energy saving led lighting save energy?

LED street light bulbs will be soon widely used in the future of household lighting, in street lights, outdoor signs and offices because of its energy-saving and environment protection. Why energy saving led lighting save energy?

Monochromatic light of high brightness LED has made great progress in markets. Although they are more expensive than traditional light bulbs, their advantages can be offset by its higher price. First of all, In order to achieve brightness, a red LED light will consume 15 watts, while the traditional bulb will have to consume up to 150 watts of energy. In addition, according to scientists testing, when LED power light, 10% of the energy can be transformed into light but only  7-8% of the conversion efficiency of incandescent bulbs. Taking the above information into consideration, in order to achieve the same lighting effects, LED lights than incandescent energy saving is obvious.

Of equal importance, the key strength of energy saving led lighting is reduced power consumption. LED circuit will approach 80% efficiency, which means 80% of the electrical energy is converted to light energy. The remaining 20% is lost as heat energy. Compare that with incandescent bulbs which operate at about 20% efficiency (80% of the electrical energy is lost as heat). Realistically the cost savings would be higher as most incandescent light bulbs blow out within a year and require replacements whereas LED light bulbs can be used easily for a decade without burning out.

In real money terms, if a 100 Watt incandescent bulb is used for 1 year, with an electrical cost of 10 cents/kilowatt hour, $88 will be spent on electricity costs. Of the $88 expense, $70 will have been used to heat the room, not light the room. If an 80% efficient LED high bay system had been used, the electricity cost would be $23 per year – there would be a cost savings of $65 on electricity during the year.

It will be interesting to see what developments are coming for more residential applications of energy saving led lighting. LED lighting technology has been researched and developed for the past two decades We in the industry are certain that tomorrows LED lights will last longer and consume even less power than todays energy efficient led light bulbs. LED lighting will be used to replace virtually every type of light, bulb, and lamp that is currently in use.

The color quality is perhaps the most difficult problem for new led lighting

LED street light manufacturers also have to face their new problems. Perhaps in the shop windows, the new led lighting has been abandoned. With the rapid improvement in SSL, the listed time is critical. Although the actual design time is shorter, but to obtain the required certificate from the US takes a few months.

Design engineers to select those that may take several years manufactured LED must remain cautious. Because LED products use the same package, LED manufacturers can easily release a higher flux of lighting. With the rapid development of LED chips, LED packing technology keeps the pace. And the LED performance improvements will have an equally important role. LED manufactures are extremely clear, and subsequently extended the life cycle of their products. In addition, if possible, it will make new led lighting with the previous model and the same PCB.

The color quality is perhaps the most difficult problem. The industry has spent a lot of time and money in the color variability of measurement and control. For manufacturers,  chroma storage, like OSRAM ANSI, spend more and more. But the color temperature and compact chroma isn’t the all problems,  because with the same chromaticity coordinates of light source may have different optical wavelength. If the spectral differences, the two different non-white surface will come into being.

Typically, the LED light has the same chromaticity coordinates, which is not a problem, because their spectra are very similar. That is to replace incandescent with an new led lighting. This is a potential problem. Because the great difference of the LED spectrum and incandescent spectrum.

Color efining index (CRI Color Rendering, the Index) is a measure of the closeness of the perceived color of a surface lighting with the same surface in a given lighting of color under incandescent indicators. CRI of 100 is a perfect match. While CRI of 80 is good, but the more discriminatory consumer may not think so.

OSRAM introduced by the increase red LED products Brilliant,Mix in the green – white LED. When the red with green-white mixed, it will produce white spectrum incandescent spectrum to match more white spectrum. Especially in the end of the red LED. Because usually here the conventional white LED bulbs color will drop. The result is a higher efficiency of lighting and refined color index.

what is led bulb of LED package

No matter what type of LED to the need for different types of design package, because only the packaged end products in order to put into practical application. what is led bulb?

what is led bulb of LED package
Why LED package ?
The LED package will lead to the electrodes of the LED chip, not only to protect the LED chip, and serve to improve the luminous efficiency. LED packaging is not just to complete the output signal is more important is to protect the normal work of the die, the output of visible light function. Shows both the electrical parameters of LED packaging, and optical parameters of design and technical requirements, is not a simple task.

2.LED package devices
Require a higher LED Street light package, therefore, whether the DIP LED or SMD LED must use high-precision solid crystal, because the location of the LED chip into the package is accurate and will directly affect the luminous efficiency of the whole package devices . If the location of the chip in the reflector cup is biased, the light can not be fully reflected, direct impact on the brightness of the LED. However, using an advanced PR System (pre-image recognition system) solid crystal machine, regardless of the quality of the lead frame difference can still be accurately LED chip soldered on a predetermined position.

3.LED package form
According to different applications, different dimensions of the cooling solution and the glow. LED packaging a variety of forms. At present, the LED package the classification of the Lamp-LED TOP-LED, Side-LED, SMD LED, High-Power-LED high bay, Flip Chip-LED, etc.

SMD LED (Surface Mount LEDs)
SMD LED is attached to the circuit board surface, suitable for SMT processing, reflow, and a good solution to the brightness, angle, flatness, reliability, consistency and other issues, the use of lighter PCB board and the reflective layer materials improved to remove the heavy carbon steel pin DIP LED, display the reflective layer need to be filled with epoxy resin less aims to reduce the size, lower weight. Product weight of the surface mount LED can be easily lightened by half, and ultimately make the application more perfect. what is led bulb?

High-Power-LED (high-power LED)
In order to obtain high power, high brightness LED light source, manufacturers, high-power direction of the LED chip and package design to development. At present, able to withstand the number of W-power LED package. Multi-chip combinations such as Norlux series of high-power LED package structure of hexagonal aluminum base (non-conductive), the base diameter of 31.75mm, the emitting area is located in the center part of a diameter of about (0.375 × 25.4) mm can accommodate up to 40 LED die, aluminum as a heat sink. This package using conventional die combination of high-density package, high luminous efficiency, low thermal resistance, high optical output power at high current, but also a promising development in LED solid-state light source.

what is led bulb? Visible, the power LED thermal characteristics of a direct impact to the operating temperature of LED luminescence efficiency, emission wavelength, life, power type LED chip package design, manufacturing technology is even more important.

what is led bulbs from Eneltec

LED is a light-emitting crystal produced by a superconducting ultra-high intensity lighting, unlike incandescent lamps need to first convert electrical energy into heat energy, thermal energy conversion to light emitting principle. At present, the LED as the emerging next-generation light source, as technology advances, I believe will be of great future development. Then what is led bulbs?

 

what is led bulbs from Eneltec

The advantages of LED

(1) long life
LED lamp life of up to 100,000 hours, much higher than incandescent lamps for more than a thousand hours. If we use every day for four hours, then over 60 years of use under normal circumstances, basically more than human life.

(2) energy saving and reduce the cost
LED General 12V-24V DC. Low voltage high optical performance than traditional incandescent lamps to save more than about 80% of the electricity. High-brightness monochromatic LED compared with the traditional light bulb is more expensive, but just the energy-saving advantages will be able to make up for the shortcomings of the high price. If an LED light to be required for a specific brightness power consumption is 15W, then the traditional light bulb to achieve the same brightness, power consumption may be as high as up to 150W.

3 conducive to environmental protection
LED and incandescent lamps, fluorescent lights, luminous works differently, so do not waste too much heat, does not produce toxic gases, difficult to damage, is recognized worldwide as a new generation of environmentally friendly high-tech products.

4 good environmental adaptability
LED as long as the temperature is -40 ° C to -85 ° C, humidity ≤ 65% can normally safe to use. Suitable for use in harsh environments.

5 wide range of applications:
LED light source can be applied in the architectural landscape decoration, highways, bridges, advertising three-dimensional characters, commercial space, airports, subway, hospitals, hotels, cars, computers, mobile phones and other occasions, a wide range of applications.

weak point of LED (what is led bulbs)

1. CRI is poor
LED average CRI in the past to lower the color is not displayed in the LED irradiation incandescent real and likely to cause visual errors and errors of judgment, from the spectral distribution up analysis, a technical problem. But come in phosphors, LED materials used technology to enhance the CRI has been manufacturers gradually pushed up to 90 levels.

2 single LED low power
Low power single LED, the LED light source brightness value is not very high, in order to increase the brightness on the number of LED used in parallel, such as car taillights. Although the single LED is not expensive, but the number is more cost will be high. A single high-brightness high-power LED prices are very expensive and a high-brightness LED also about 5000 candle brightness.

(3)  short distance
Although the multi-LED method can improve the brightness of the light source, but did not increase the illumination distance. Because the divergence of the LED light, even if the condenser adjustment, the light from the under the technical standards in the past was only a few dozen meters, LED light source suitable for close lighting is not suitable for long-distance probe according to sexual activity . However, with the enhancement of technological power, the LED light distance can also be elongated, short-term point of view, the LED’s larger problem is the average unit price to be lower.

(4) the heat dissipation problem

LED products, another problem is heat, if we can not efficiently dissipate heat will shorten the life of the product. Industry are working to develop more effective heat dissipation coefficient of the material used in the field of LED.

what is led bulbs? We have detailed the advantages and disadvantages of LED light source, but have fundamental, the LED street light as the emerging next-generation light source, its power-saving, long life and other advantages won the support of the Governments, I believe that under the new technological advances in the global LED industry, LED weaknesses can be gradually overcome, the future prospects for the future, a great future development.