LED lamp
LED lamp LED lamp is used as a super bright white LED light source, the shell is acrylic / aluminum alloy. Housing available PC pipe production, high temperature up to 135 degrees. LED fluorescent lamp with the traditional appearance on the size of the same diameter, length 60cm and 120cm, 150cm three, the power was 10W, 16W and 20W, and 20W traditional fluorescent lamp (ballast) the actual power consumption of about 53W , 40W traditional fluorescent lamp (ballast) the actual power consumption of about 68W.
LED Fluorescent T8
[1] Definition:
10WLED than traditional 40W fluorescent lamp fluorescent light even brighter, 16WLED than traditional 64W fluorescent lamp should light, LED fluorescent light in particular, appear to be more soft and more people access to the grant. Life in 50000 -8 million hours for the supply voltage of AC85V-260V (AC), no starter and ballast, quick start, low power, no flash, not easy to visual fatigue. It is not only more environmentally friendly energy superpower. Is a national green energy-saving lighting products developed by one of the key, is to replace the traditional fluorescent lamp of the main products.
LED fluorescent light installation is relatively simple, it points to both internal and external power supply, power supply built-in LED fluorescent light installation, remove the replace the original LED fluorescent lamp, ballast and starter will be removed to 220V AC power can be directly added to the LED lamp at both ends. External power LED lamp with a special lighthouse general, the replacement of the original can be used.
LED fluorescent lamp energy saving of up to 80%, life 10 times more than ordinary lamp, almost maintenance-free, there should always replace the lamp, ballast, starter problems, about half a year down the cost savings can exchange costs. Environment-friendly semiconductor light source, light and soft, pure spectrum, in favor of workers vision care and physical health, 6000K cold light source gives the feeling of cool visual to help focus and improve efficiency.
Light principle:
PN junction voltage to a certain barrier, when the Canadian base forward bias voltage drop times, P region and N region majority carrier diffusion to the other. Since electron mobility is much greater than the hole mobility, so there will be a lot of e-District to the P diffusion, P area constitutes the injection of minority carriers. These electrons and valence band hole recombination, when the compound obtained in the form of light energy to be released. This is the principle of light-emitting PN junction.
Luminous efficiency:
Commonly referred to as the external quantum efficiency component, the component of its internal quantum efficiency and extraction efficiency of the product components. The internal quantum efficiency of the so-called components, in fact, the electro-optical conversion efficiency of the component itself, the main features with the component itself (such as component materials, the band, defects, impurities), a component of the base composition and crystal structure correlation. The components of the extraction efficiency refers to the internal components of photons, after the absorption of the component itself, refraction, reflection, the real components of the external measurable in the number of photons. Therefore, the factors on the extraction efficiency of the components of the material itself absorbs, component geometry, components and packaging materials and components the refractive index difference between the structure of scattering characteristics. The components of the internal quantum efficiency and extraction efficiency of the product components, that is, the luminous effect of the component, which is the component of the external quantum efficiency.
Developments are concentrated in the early component to improve their internal quantum efficiency, mainly by the quality of crystal by increasing Lei Lei Crystal structure and change, so easy to convert electrical energy into heat, thus indirectly enhance the LED luminous efficiency, which receive about 70% theoretical internal quantum efficiency, internal quantum efficiency, but this is almost close to the theoretical limit. In such a situation, to improve the component alone is not possible to improve the internal quantum efficiency of the total amount of light components, thereby increasing extraction efficiency of the components will become an important research topic. The current methods are: grain shape change - TIP structure, surface roughening techniques.
Electrical Characteristics:
Current control devices, load characteristics similar to the PN junction of the UI curve, forward voltage will cause very small changes in a large change in forward current (index level), the reverse leakage current is very small, there is the reverse breakdown voltage. In actual use, should be selected. LED forward voltage decreases with increasing temperature, with a negative temperature coefficient. LED power consumption, some converted to light energy, which is what we need. The rest is converted into heat energy, the junction temperature rise. The heat (power) can be expressed as.
Optical Properties:
LED provides is a great half-width of the monochromatic light, the semiconductor energy gap decreases with temperature increase, so its emission peak wavelength with temperature in the economy, the spectral red shift, the temperature coefficient of +2 ~ 3A/.LED luminance L and the forward current approximately proportional to:, K is proportional coefficient. Current increases, the brightness is also similar increases. Also brightness and the ambient temperature is also related to the ambient temperature is high, the compound reduced efficiency, reduced emission intensity.
Thermal Properties:
Low current, LED temperature is not obvious. If the ambient temperature is high, LED will be red shift of the main wavelength, brightness down, light uniformity, consistency worse. In particular lattice, the temperature rise on the large screen LED reliability, stability is more significant. Therefore, thermal design is critical.
Life:
LED's will light failure caused by long working hours of aging, especially for high-power LED, the light is even more serious decline. In measuring LED life, the only damage to the lamp end of life as a LED is not enough, LED light attenuation should be provided a percentage of the life of LED, such as 35%, so that more meaningful.
LED Fluorescent Lamp characteristics
LED lamp with high quality, durable, energy-saving as the main characteristics of the projection angle adjustment range, 15W brightness equivalent to an ordinary 40W fluorescent lamp, high temperature, moisture and waterproof, leakproof. Use voltage: 110V, 220V optional, jacket optional glass or PC material. As with ordinary fluorescent lamp.
LED lamp LED light source using the latest technology, digital design, saving up to 70% or more, 12W of LED fluorescent light intensity equivalent to 40W fluorescent tube lamp LED lamp life of more than 10 times normal, almost maintenance-free, no regular replacement lamp, ballast, starter. Green semiconductor light source, light and soft, pure spectrum is conducive to protection of the user's eyesight and physical health. 6000K cold light source gives the feeling of cool visual, user-friendly design of the illumination differences, but also help to focus and improve efficiency.
1, the applicability in harsh indoor and outdoor environments to improve the adaptability and reliability have
2, rich colors: the three primary colors (red, green, blue) display unit box body, the electronic displays showing rich colors, high saturation, high resolution, high frequency of dynamic image display
3, High brightness: high brightness LED, solar light is still visible under the long-distance
4, good results: The non-linear correction, the image clearer, stronger sense of hierarchy
5, reliability: The static scan technology and module design, higher reliability and stability
6, Diversified display modes: support for multiple display modes.
Ordinary fluorescent characteristics
Ordinary fluorescent light at each end of a filament lamp is filled with traces of argon and mercury vapor thin, tube wall coated with fluorescent powder, the gas between the two conductive filament when the ultraviolet light, the phosphor glows softly with visible light.
Ordinary fluorescent lights work characteristics: Lamp started fire requires a high voltage, when the normal light not only allows the current, then the voltage across the lamp below the supply voltage.
Ordinary fluorescent tubes with both ends of the filament, the glass tube wall coated with a thin uniform layer of fluorescent powder, the tube was pumped into vacuum of 10-3-10-4 mm Hg after a small amount of inert gas filled, but also into the micro of liquid mercury. Ballast is an iron-core inductor coil, the nature of the inductor current in the coil changes, caused by magnetic flux in the coil will change, resulting in induced electromotive force in the direction of current in the opposite direction, thereby preventing the current changes.
Starter switch from the role in the circuit, which consists of a neon discharge tube in parallel with a capacitor made of the role of capacitance on the power to eliminate electromagnetic interference and vibration soup with ballast circuit formed to increase the starting pulse voltage amplitude . Discharge of an electrode composed of double-metal, the use of neon bulb discharge heating, double metal in the open and close, causing the current mutation of ballast added to the tube and produce high-voltage pulse ends
When ordinary fluorescent access circuit after the starter began to glow discharge between two electrodes, so that thermal expansion of two-metal contact with the very touch of static, so the power supply, ballast, and starter filament form a closed loop, current causes the filament preheating, when the heating time of 1-3 seconds, the starter of the glow discharge between two electrodes off, followed by double metal cooling off with a very quiet touch, disconnected when the two electrodes moment, a sudden disappearance of current in the circuit, so the ballast to produce a high-voltage pulse, which overlapped with the power supply, added to the tube ends so that the inert gas ionization inside the tube caused by arc discharge, glow in the normal course of the town self-inductance converter circuit current also plays a stabilizing role.
LED fluorescent property by common features and characteristics of fluorescent property compared to conclude:
LED fluorescent light and ordinary fluorescent light compared with the following advantages:
Energy saving, long life, fitness is good, because the size of a small single LED can be made into any shape, response time is short, environmental protection, no harmful metals, waste recycling is easy, colorful, luminous, pure color, a narrow spectral range, and through red, green and blue color blending into a colorful or white.
Comparison of LED lamp and LED lamp with an ordinary fluorescent disadvantages are as follows: the price of your current energy efficiency and generally do theoretical light efficiency of light there is a great gap between the life of the present can do a big gap between life and theory. Or have some heat, light failure can also significantly reduced.
Advantages:
1, environmental lighting, protection of the Earth
Traditional fluorescent lamps contain a lot of mercury vapor, if broken mercury vapor into the atmosphere is volatile. But do not use the LED lamp is mercury, and LED products do not contain lead, play a protective effect on the environment. LED fluorescent recognized as the twenty-first century, the green lighting.
2, efficient conversion, reduce the heat
Traditional lamps will produce a lot of energy, and LED lighting is all the energy is converted to light, will not cause waste of energy. But also documents, clothing does not produce bleaching phenomenon.
3, quiet comfort, no noise
LED lamps will not produce noise, precision electronic instruments for the use of the occasion is a good choice. Suitable for libraries, offices and the like occasions.
4, soft light, protect your eyes
Traditional fluorescent lamp using AC, it will have 100-120 times per second strobe. LED lighting is the direct conversion of AC to DC, no flicker, protect the eyes.
5, no UV, no mosquitoes
LED lamps do not produce ultraviolet light, so lighting will not be as traditional as a lot of mosquitoes around the light source side. Room will become more clean and sanitary and clean.
6, voltage adjustable 80V-245V
Traditional fluorescent lamps is released through the rectifier high voltage to light, and when the voltage is lowered, you can not light up. The LED lamp in a certain range of voltage can be lit within, but also adjust the brightness.
7, save energy, live longer
LED fluorescent lamp power consumption is the traditional one-third less, life is 10 times the traditional fluorescent lamp can be replaced without the need for long-term use, reduce labor costs. More difficult to replace for the occasion.
8, solid solid, long-term use.
LED lamp body itself, rather than using a traditional glass epoxy resin, more robust solid, even hit the floor LED will not easily damaged, can be safely used.
9, compared with ordinary fluorescent lamps, LED fluorescent lamp without ballast, no starter, no strobe.
10, maintenance-free, frequent switching will not cause any damage.
11, a safe and stable quality can withstand high voltage heat 4kv can work in low temperature low temperature -30 ℃ 55 ℃.
12, no impact on the surrounding environment. No ultraviolet and infrared, there is no hazardous materials such as mercury, eye protection, and no noise.
13, anti-vibration, good, easy to transport.
Material composition and appearance
1, LED fluorescent light by a number of ultra-low-power satellites LED, high light transmission PC housing, heat aluminum and power supply.
2, LED fluorescent light source used straw hat lamp bead head and patch models.
SMD LED beads which are commonly used in 3528,5050,1 W high-power, etc.
3, LED fluorescent lamp shell, there are two:
1) Transparent PC cover, light high-performance, you can see the lights inside the beads;
2) frosted translucent shell, revealing a softer light.
4, LED fluorescent lamp built-in power supply voltage for the wide voltage from 85V to 265V can be used.
5, LED fluorescent lamp can be made into red, yellow, blue, green, white, warm white color.
Basic Specifications
T5: Currently LEDT5 lamp specifications
T8: some of the specifications currently T8
Scope:
Offices, factories, shopping malls, schools, home and other indoor lighting.
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