Albert Einstein On Led Lights

“L-E-D”. With regards to lighting, you’re hearing these three letters again and again… you see it posted all over lighting websites, and its starting to bug you. It seems to be an exciting new trend…some type of new innovative light…nevertheless, you have no idea what it is. You would like to know very well what everybody’s talking about- what’s extremely popular?

LED’s – Light Emitting Diodes – Simply put, LED’s are diodes that…(huh?) hang on, I’ll explain: a diode is the simplest type of semiconductor device. (what’s that?) wow, you’re impatient: A semi-conductor is a material with the ability to conduct electrical current. Basically, rather than emitting light from the vacuum (as in an incandescent bulb) or perhaps a gas (as in a CFL), LED emits light from a piece of solid matter, its semi-conductor. Stated very simply, an LED produces light when electrons maneuver around within its semiconductor structure.

They tell you when to avoid and go. They have ruled your driving, saved your daily life countless times, and that little red synthetic you wait around till you were in a position to cross the street. That is right – the red, yellow and green on the traffic lights are Led lights right in front of your nose. Actually, Light Emitting Diodes have already been around for some time, conceptualized in 1907. However, it wasn’t before 1960s that practical applications were found and LED’s were first manufactured. UFO Led High Bay Light was previously used exclusively for traffic signals, brake lights and headlights on luxury cars, and indicator lights on appliances.

You probably didn’t even understand that LED lights were smoking cigarettes your digital clocks, flashlights and telling you when you’ve got a new voice message on your own cell phone. Expensive in the beginning, as applications grew, benefits were discovered and manufacturing costs went down. According to the American Lighting Association (ALA), lighting manufacturers have invested considerable time, effort and research into adapting this super energy-efficient technology for household use. The technology has advanced enough to win approval from the government’s popular and well-respected Energy Star� program. So here’s why:

They do more for less. LED’s are efficient-producing a great deal of light from a little power. For instance, one 5-watt LED can produce more light (measured in lumens) than one standard 75-watt incandescent bulb. The 5-watt LED could do the job of the 75-watt incandescent at 1/15 of the energy consumption. LED’s save energy and, therefore, money. Simply because in LED lights, 90% of energy is changed into light, while in incandescent bulbs 90% of energy goes to heat and only 10% to visible light.

They go longer. LED is virtually free of maintenance – they don’t have a filament that may burn out, so that they last much longer. A standard “longevity” household bulb will burn for approximately 2,000 hours. An LED can have a useful lifespan around 100,000 hours! By some sources, LED’s can last for as long as 40 years. Imagine not having to change a lamp for years. You can find LED products available this season that may make frequent light bulb changes so 20th century.

How it actually works… (skip this part unless you really care) Light is a form of energy that can be released by an atom. It is made up of many small particle-like packets, called photons, which will be the most basic units of light. LED’s are specially constructed release a a large number of photons outward.When a power charge strikes the semiconductor, a small electrical current, which is measured by watts (oh! so that’s what they mean by ‘has low wattage’!) is passed through the semiconductor material. this causes the electrons to go around, become “excited” and present off photons. The vast majority of the power emitted is light energy.

Within an ordinary diode, such as for example incandescent bulbs, the semiconductor material itself ends up absorbing most of the light energy so that it produces more heat energy than light energy.That is completely wasted energy, unless you’re using the lamp as a heater, just because a huge portion of the available electricity isn’t going toward producing visible light. LED’s generate very little heat, relatively speaking. A higher percentage of the electrical power is going right to generating light, which significantly reduces the electricity demands considerably. As you can see in the diagram,they are housed in a plastic bulb that concentrates the light in a specific direction. A lot of the light from the diode bounces off the sides of the bulb, traveling on through the rounded end.

They are an improved buy (in the long term). Until recently, LED’s were very costly to use for some lighting applications because they’re built around advanced semiconductor material. The price of semiconductor devices has plummeted over the past decade, however, making LED’s a more cost-effective lighting option for an array of situations. While they may be more expensive than incandescent lights in advance, a 60-watt LED replacement bulb runs in the area of $100, and also the lower-output versions, useful for things such as spot lighting, will cost between $40 and $80.

That’s compared to a $1 incandescent and a $2 fluorescent bulb.The reality is, even at $100 for a single bulb, LEDs find yourself saving money over time, as you only need a couple of every decade and you also spend less overall on home lighting, which can take into account about 7 percent of one’s electric bill [source: Greener Choices]. But don’t worry, the scary price you need to pay upfront won’t last too long, the lighting industry generally expects LED costs ahead down quickly. Lighting Science Group, an organization that develops and manufactures LED lighting, estimates a 50 percent price reduction within two years.