We have entered a new era of lighting – LED.
Historically, artificial lighting was created using oil and a wick, then captured by Thomas Edison, then all the way to HID lighting. Unfortunately, it produces a high amount of heat. Next, we have stepped into the world of LED lighting. LED lighting is a solid state color of light determined by phosphors spectrum of color.
Advantages of LED
- Efficiency: LEDs emit more light per watt than incandescent light bulbs. The efficiency of LED lighting fixtures is not affected by shape and size, unlike fluorescent light bulbs or tubes.
- Color: LEDs can emit light of an intended color without using any color filters as traditional lighting methods need. This is more efficient and can lower initial costs.
- Size: LEDs can be very small (smaller than 2 mm2) and are easily attached to printed circuit boards.
- On/Off time: LEDs light up very quickly. A typical red indicator LED will achieve full brightness in under a microsecond. LEDs used in communications devices can have even faster response times.
- Cycling: LEDs are ideal for uses subject to frequent on-off cycling, unlike fluorescent lamps that fail faster when cycled often, or HID lamps that require a long time before restarting.
- Dimming: LEDs can very easily be dimmed either by pulse-width modulation or lowering the forward current.
- Cool light: In contrast to most light sources, LEDs 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.
- Slow failure: LEDs mostly fail by dimming over time, rather than the abrupt failure of incandescent bulbs.
- Lifetime: LEDs can have a relatively long useful life. One report estimates 35,000 to 50,000 hours of useful life, though time to complete failure may be longer. Fluorescent tubes typically are rated at about 10,000 to 15,000 hours, depending partly on the conditions of use, and incandescent light bulbs at 1,000 to 2,000 hours. Several DOE demonstrations have shown that reduced maintenance costs from this extended lifetime, rather than energy savings, is the primary factor in determining the payback period for an LED product.
- Shock resistance: LEDs, being solid-state components, are difficult to damage with external shock, unlike fluorescent and incandescent bulbs, which are fragile.
- Focus: The solid package of the LED can be designed to focus its light. Incandescent and fluorescent sources often require an external reflector to collect light and direct it in a usable manner. For larger LED packages total internal reflection (TIR) lenses are often used to the same effect. However, when large quantities of light is needed many light sources are usually deployed, which are difficult to focus or collimate towards the same target.
Misconceptions of LED
- Lumen Output Is Diminished: this is true – but, because the lumens are more directed to the lighted area, they are actually more effective.
- LEDs Don’t Save Energy: LED bulbs typically consume fewer than half from the energy of a compact fluorescent and 1/8th to 1/10th from the power of the incandescent bulb. Those figures for LEDs will even improve with time too. LEDs, in the end are chips: background and physics dictate that they will decrease in price and improve in performance steadily with time. Conventional bulbs are vacuum tubes. They don’t improve. Incandescent bulb, still typically the most popular bulb with consumers within the US, typically just use Ten percent from the power fed into these to create light. The remainder gets converted into heat. You probably don’t own vacuum pressure tube-powered computer or perhaps a CRT TV anymore. Your Music player doesn’t weigh 35 pounds due to integrated arrays of switches and relays. How come you have a great deal of vacuum tubes stuck in lamps throughout your property? The inefficiency of traditional bulbs accumulates. Consumers and businesses all over the world spend over $100 billion on bulbs and fixtures annually, and also over USD 600 billion to power them. Lighting companies currently have gotten away with serving in the status quo for more than a hundred years to some extent by convincing people to not consider light. It’s the light bulb, they argue. Just replace them once they burn up. These people don’t bother to say that it’s a high priced habit. About 23 percent from the electricity inside the U.S gets gobbled up by lighting: 18 percent visits power bulbs and also the remaining four to five percent gets accustomed to run air conditioning units to get rid of the waste heat generated by inefficient bulbs. And speak to your janitor: replacing bulbs continues to be one of the greatest tasks for facilities managers everywhere.
- Light emitting diodes Don’t Work: Actually, auto producers, TV makers, street light manufacturers and makers of commercial equipment have previously considered LEDs to lessen power. These manufacturers, in reality, have chosen LEDs simply because they fit better using the rough and tumble every day reality. Unlike conventional bulbs, LEDs don’t shatter. Additionally they don’t contain gases like mercury or electrodes that may easily snap. A GTL bulb can last 100,000+ hours, which means a lot more than 10 years in ordinary commercial and industrial situations.
- It’s Only a Light Bulb: In reality, LEDs are computer systems. More often than not, consumers likely won’t even notice a positive change: research indicates that lights at work buildings could be dimmed by 40 % provided thirty minutes without anyone complaining. In the finish, consumers are experiencing lower bills, the utility can curb peak power usage and also the upkeep staff won’t need to change bulbs as frequently.
- LEDs Are extremely Expensive: With the actual Return on Investment in 18-24 months, the LED lights truly pay for themselves.
We at Global Tech LED are glad to teach you more about this wonderful technology as well as introduce you to our revolutionary line of products.
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President, Global Tech LED