সোমবার, ২৮ অক্টোবর, ২০১৩

Light emitting diode

As LED lighting is becoming increasingly popular in architectural lighting, task lighting, medical lighting (particularly for use in surgical theatres), transportation, entertainment, and even household lighting. This article intends to be a comprehensive guide to their utility, what the advantages that LED lighting possesses over other types of lighting and how to select an appropriate power source for the LED bulb.
First, what IS an LED light? A light-emitting diode (LED) is an electronic light source. LED's are based on the semiconductor diode. When the diode is forward biased (switched on), electrons are able to recombine with holes and energy is released in the form of light. This effect is called electroluminescence and the color of the light is determined by the energy gap of the semiconductor.
LED's present many advantages over traditional light sources including lower energy consumption, longer lifetime, improved robustness, smaller size ( enabling LED's to be easily populated onto printed circuit boards.) and faster switching (LED's light up very quickly. A typical red indicator LED will achieve full brightness in microseconds, and LED's used in communications devices can have even faster response times.). Thus their utility value is very high. Maybe the greatest advantage of all is that as the color of the light depends on a specific variable (i.e.- the energy gap of the semiconductor) thus LED's can emit light of an intended color without the use of color filters that traditional lighting methods require. This is more efficient and can lower initial costs for a vast range of applications which previously used the colour filtering process.
Further advantages of LED's exist, among them efficiency of an LED is prominent. LED's produce more light per watt than incandescent bulbs, and wastage of energy is minimal, as LED's radiate very little heat in the form of IR that can cause damage to sensitive objects or fabrics. Wasted energy is dispersed as heat through the base of the LED. Further as light is emitted from a solid state material, greater shock absorption capability is present in the LED lights. Further, LED's do not contain mercury, unlike most fluorescent lamps.
But LED's are currently more expensive, on an initial capital cost basis, than most conventional lighting technologies, and are very much sensitive to temperature and voltage. LED's must be supplied with the voltage above the threshold and a current below the rating. This can involve series resistors or current-regulated power supplies, and the proper function of the power supply is an essential factor in creating maximum utility and longevity of the systems. If too much current passes through the semiconductor material forming the Diodes the LED will burn out! LED power supplies must, among others, provide Universal AC input, allowing the full range of applications, Short circuit, over load, over voltage protection, a built-in dimming function, allowing the light levels to be adjusted to create different effects.
And of course the safety of the LED power supply is a prime concern, to prevent overheating, cooling should take place, and the most efficient form of this is by free air convection. And the power supply must come fully equipped with an isolated, (preferably) plastic case that is resistant to external influences such as water on order to protect it from harmful effects of water and dust.

If you are planning an LED lighting project, for your home, garden or even your office or your shop, a thorough research on the subject may be your best starting point. And as LED's are very sensitive make sure you use an appropriate and high quality power supply. Speak to your local electronic engineer or a reputed seller of LED lights and power supplies for more information. A vast array of online LED and LED power supply vendors exist as well. Their official websites offer high quality information and specifications to tailor a solution for your lighting requirements.

বৃহস্পতিবার, ১০ অক্টোবর, ২০১৩

LED's advantages

Bulb is a great item which is removing darkness. We need bulb for our daily life. From many years ago we are using traditional halogen bulb and it is now also a tradition to use it. There is now a new product and which is that LED light. But there are many people who are not interesting about this light. But it has many advantages which a traditional halogen light cannot give. It is happening for not known about the advantages of LED lights. It is very important to know about advantages of LED lighting. If you don’t know about the advantages of LED lights then read below.
This is a kind of light which can giving the same output within 9-15 voltages when a traditional halogen light using 60-80 voltages. If you subtract this then you will find that this light is saving up to 80% electric energy. Thus it is playing a big role in electrical sector. It is saving also a huge amount of money by using low voltages. Thus it is also playing vital role in economical sector.
This light is not creating as much heat as traditional light. Thus it is helping us to reducing the impact of global warming. Due to global warming is bad impa
ct for our living planet that means earth so it is very important to using this light.
This light is a kind of light which can be made without any toxic materials like mercury. Mercury is very harmful for human health which is using to making traditional light. So it is safe from this effect. It is also safe from many effects and these are UV and IR. UV and IR are the bad impact for human body. UV is Ultra violet which is coming from the Sun and IR is Infrared Radiation. Both of these are badly effecting on human health and LED light is free from them.
This light is giving more brightness than traditional light. Thus it is helping show room owners, shopping mall owners and many others to attracting their customers to their products.

There are also many advantages of LED lighting. You can know from www.aceleds.com. It is great website about LED lights. You can know and find many kinds of LED lights and constant current LED drivers from here. They are providing world class LED lights and constant current LED drivers all over the world. Their quality is certified by ISO. So, you can trust the quality of their products. You will be surprise to hear that their quality assured products are using in NASA space center, Texas University, Cleveland football stadium and many other big places. I hope they can give you the best service.

বৃহস্পতিবার, ৩ অক্টোবর, ২০১৩

AC Electronics is a brand of LED lighting

Is your lights are flickering so much? Is your lights are creating heat so much? Is your lights are requiring voltages so much? If your answer is yes then you should use LED lights. This is a kind of light which can solve all of these problems. This light has many advantages which are ensuring to removing deep darkness, no flickering and constant lighting, not so much heat and most importantly it is energy efficient.
LED lighting is now well known in worldwide for its attractive advantages. It is now using as a common light in the world. There are found many LED lights in the world and they are LED down light, LED bulb, LED floodlight, LED grow light, LED tube light and many others.
LED light can giving us max brightness by using only 8-15 voltages. Thus it is saving huge voltages. Thus we can save up to 80% electric energy which we were wasting by using traditional or fluorescent lights. Many governments are also pushing their people to using this light in every home. Thus it is playing a big role in economical sector of a country.
People are saving huge electric energy by using this light in their homes. It is not all; they can now keep their home in cool condition by using this light. Thus it is also helping us to reduce the using trend of air conditioner. Due to air conditioner is requiring so much electric energy so it is also helping us by saving a lot of electric energy by pushing us to not using air conditioner.
Ac Electronics is one of the biggest suppliers of LED lights and constant current LED drivers. AC Electronics is a brand of quality assured LED lights and constant current LED drivers. They are supplying LED lights and constant current LED drivers all over the world proudly. They are playing an effective role in electric era. They are supplying this light since 1996 that mean they have more than 15 years experience in LED lights manufacturing and supplying. If you want to contact with them then you can contact with them by their official email address. Their official email address is sales@aceleds.com. They are giving a sufficient warranty range with all of their products.

They have a well reputation in all over the world. They are so well known that their manufactured LED lights are using in NASA space center, Cleveland Browns Football Stadium, Texas University, Tampa Bay Rays Stadium, Sax Fifth Avenue Department Stores and many other big places in the world. You can trust about their products. They are supplying quality assured LED lights and constant current LED drivers all over the world. They are certified by ISO-9002 Q.C which is ensuring the best quality of their products.