About LedPower.co.uk

Advantages of using LEDs

1. LEDs produce more light per watt than incandescent bulbs, this is useful in battery powered or energy saving devices.

2. LEDS can emit light of an intended colour without the use of colour filters that traditional lighting methods require. More efficient and can lower initial costs.

3. 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).

4. When used in applications where dimming is required LEDs do not change their colour tint as the current passing through them is lowered, ( incandescent lamps, turn yellow).

5. LEDs are ideal for use in applications that are subject to frequent on-off cycling. (fluorescent lamps that burn out more quickly when cycled frequently, or HID lamps that require a long time before restarting).

6. LEDs being solid state components, are difficult to damage with external shock. (Fluorescent and incandescent bulbs are easily broken if dropped)

7. LEDs can have a relatively long, useful life.

8. LEDs mostly fail by dimming over time rather than abrupt burn out.

9. LEDs light up very quickly...full brightness in microseconds.

10. LEDs can be very small and are easily populated onto printed circuit boards.

11. LEDs do not contain mercury (compact fluorescent lamps do)

12. Due to the human eye's visual pesistence LEDs can be pulse width or duty cycle modulated in order to save power or achieve apparent higher brightness for given power input. The eye will tend to perceive the peak current light level rather than the average current light level.

What do we use LEDs for?

1. Remote controls (such as TVs and VCRs often use infrared LEDs)

2. Glowlights (more expensive but longer lasting and a reusable alternative to Glowsticks)

3. Movement sensors (optical computer mice)

4. The Nintendo Wii's sensor bar uses infrared.

5. In optical fiber and Free Space Optics communications

6. Toys and recreational sporting goods (such as Flashfight)

7. In pulse oximeters for measuring oxygen saturation.

8. Lumalive a photonic textile

9. LED photography for acne using blue or red LEDs has been proven to significantly reduce acne over three months.

10. Some flatbed scanners use arrays of RGB LEDs rather than the typical cold-cathode fluorescent lamp as the light source.

11. Computers for hard drice activity, power on, to draw attention to given components or show the state of the device.

12. Sterilization of water and other substances using UV light.

LIGHTING

1. Grow lights using LEDs to increase photosynthesis in plants.

2. Light bulbs

3. Lanterns

4. Streetlights

5. Large scale video displays

6. Architectural displays

7. Light source for machine vision systems

8. Motor cycle and Bicycle Lights

9. Torches and Flashlights including some mechanically powered models.

10. Emergency Vehicle Lighting.

11. Backlightin for LCD televisions

12. Stage lighting

13 Christmas Lights available in different colours with low energy consumption.

14 Traffic Lights and Signals, Exit Signs, Railroad Crossing Signs etc.

15 Lift lighting

16 Brake Lights

LED Panels.

There are two types of LED panels....conventional using discrete LEDs and surface mounted device (SMD) panels.

Most outdoor screens are built around discrete LEDs, also known as individually mounted LEDs.

Most indoor screens are built using SMD technology. An SMD pixel consists of red, green and blue diodes mounted on a chipset, which is the mounted on a driver PC board.

The largest LED display in the world is in Las Vegas and is over 1,500 feet long.

LED FLAT PANEL TV.'s

Some Interesting Links:

http://www.jdl-led.com/index2.asp?gclid=CNi1gbD8vpQCFQFvHgod8GqRSw

http://www.toyoda-gosei.com/led/

http://www.enn.com/sci-tech/article/31615