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What are LEDs? Their background and uses.

Sat, 28 Jul 2012

What are LEDs?

Simply put LED stands for Light Emitting Diode.

They are solid state in that they contain no moving parts, mercury, or glass.

LEDs use very little power and depending on whether they are powered through in-line resistors or are properly current regulated can last between 20,000 and 100,000 hours. 

Today they are found in many electrical items from the backlight that illuminates the screen on your mobile phone, to the latest torches and LED Downlights.

Background information on LEDs and their impact on LED Lighting

The first practical LED (Light Emitting Diode) was invented in 1962 by Nick Holonyak, and Edith Flanigen. Until the 90's LEDs were fairly low power in terms of light output and were only used primarily as status indicators in hifi, tv's, and other electrical goods. Then around 1993 the World's first blue LED was commercially developed by Professor Shuji Nakamura. Since that breakthrough LED Technology has developed at a staggering pace, matching or even rivalling that of the advance in computer technology.

By the turn of 2000 all kinds of LED Lighting products were making use of the new found applications for LEDs.

The first wave of LEDs were super bright and ultra bright LEDs, then Lumileds released their Luxeon range from 2001 onwards. This second and third generation of LEDs were being measured in 1 watt, 3 watt, and 5 watt and 10 watt upwards the latter being a suitable replacement in terms of light output for Halogens and Incandescent Bulbs.

Recent Developments

More recently by using Multi Chip Technology there are LEDs which are several hundred watts. Litewave Ltd in many aspects is on the frontline of the rapidly moving lighting market. We have developed several products using powerful LED Light sources, one of which is the CoolFusion jointly developed by Litewave and ICELED.

In the early days between many of the LED products found uses by PC Modders for illumination of their PCs, vehicle owners lighting their cars, bikes, and even trucks for LEDs.

More recently home owners are now including LED Lighting systems in their kitchens, lounges, bathrooms and bedrooms, and outdoors in the garden. Many of our products are ideal for lighting such places.

The trend now is for that spare room, basement or attic to be converted into a room of relaxation, namely a home cinema or entertainments room. Our LED Tape be it colour changing or single colour is ideal, along with many of our other products such as our LED Fiber Optic Systems.  Our Digital Lighting systems are ideally suited in such situations giving you full control over Scene and Colours to create the desired mood. We can assist you, your electrician or project manager to provide the solutions to your requirements.

LED Lighting offers one massive advantage over traditional lighting - running costs, you can reduce your lighting bill by upto 80% when you switch to LEDs for general illumination.