LED Lights: Few Facts and What Next from Commercial Producers Using Light Emitting Diode Technology
Today, LED lighting is not just used for display lighting. Special deposition techniques have made it possible to produce much more brightness light with LED (High brightness LED or HBLED).
Use of LEDs is particularly recommended for:
LED lighting has been used for mass uses and functions like Beijing 2008 Olympic Games and remarkably big Christmas tree behind the Turku Cathedral in Finland.
Being mercury-free, LED lights are safer.
Although initial cost for installing LED-based lighting devices is more than fluorescent or incandescent bulbs, the cost is repaid via less electricity use and longer life time over a period of time. An average LED bulb has an average life of 8,000 hours compared to incandescent bulb that has an average life of 1,000 hours. Also, LED bulbs maintain their light intensity remarkably well throughout their lifetime. Energy Star Specifications need that bulb should not drop their light intensity less than 10% after 6,000 or more hours of operation. In no case should the light intensity of LED bulbs should fall by 15% at any point of operation.
Going forward, it is believed that judicious use of solar LED lights would reduce energy consumption in a significant way. Pollution resulting out of increased CO2 emission today is one of the most serious concerns for policy makers globally. Use of solar LED light products could be one way to address the threat. It is estimated that around 19 per cent of electricity consumed globally in a year is on lighting. LED-based lighting consumes around 75 to 80 percent less energy than fluorescent counterparts.
There are still rooms for big improvements in current LED-based lighting technology. For instance, phosphor is used to emit a broader wavelength spectrum of light but use of this element poses difficulties in tuning absorption and emission. As a consequence, leading LED producers like US-based CREE and Australian Valen Light Technologies are working on multiple issues to improve performance of LED lights including addressing problems posed by the use of phosphor.
The state needs to invest on promoting LED-based light as concern towards eco-friendly environment is no more just a slogan. It is imperative that state issues guidelines that make use of LED lighting mandatory for all street lighting, shelter lighting, and canopy lighting purposes among others. In United States of America, US Department of Energy (DOE) has started a competition named Bright Tomorrow Lighting Prize in May 2008: to promote producers to come out with high-efficiency LED lighting products for widespread commercial uses. The good news is that CREE has demonstrated a sample lamp generating 1330 lumens with just 8.7 W of input power. It appears that we are soon to have the "21st Century Lamp" performance levels within commercial LED products.
Use of LEDs is particularly recommended for:
- Outdoor area lighting
- Downlighting
- Task lighting (including shelter lighting)
- Display lighting including refrigerated
- Cove lighting
LED lighting has been used for mass uses and functions like Beijing 2008 Olympic Games and remarkably big Christmas tree behind the Turku Cathedral in Finland.
Being mercury-free, LED lights are safer.
Although initial cost for installing LED-based lighting devices is more than fluorescent or incandescent bulbs, the cost is repaid via less electricity use and longer life time over a period of time. An average LED bulb has an average life of 8,000 hours compared to incandescent bulb that has an average life of 1,000 hours. Also, LED bulbs maintain their light intensity remarkably well throughout their lifetime. Energy Star Specifications need that bulb should not drop their light intensity less than 10% after 6,000 or more hours of operation. In no case should the light intensity of LED bulbs should fall by 15% at any point of operation.
Going forward, it is believed that judicious use of solar LED lights would reduce energy consumption in a significant way. Pollution resulting out of increased CO2 emission today is one of the most serious concerns for policy makers globally. Use of solar LED light products could be one way to address the threat. It is estimated that around 19 per cent of electricity consumed globally in a year is on lighting. LED-based lighting consumes around 75 to 80 percent less energy than fluorescent counterparts.
There are still rooms for big improvements in current LED-based lighting technology. For instance, phosphor is used to emit a broader wavelength spectrum of light but use of this element poses difficulties in tuning absorption and emission. As a consequence, leading LED producers like US-based CREE and Australian Valen Light Technologies are working on multiple issues to improve performance of LED lights including addressing problems posed by the use of phosphor.
The state needs to invest on promoting LED-based light as concern towards eco-friendly environment is no more just a slogan. It is imperative that state issues guidelines that make use of LED lighting mandatory for all street lighting, shelter lighting, and canopy lighting purposes among others. In United States of America, US Department of Energy (DOE) has started a competition named Bright Tomorrow Lighting Prize in May 2008: to promote producers to come out with high-efficiency LED lighting products for widespread commercial uses. The good news is that CREE has demonstrated a sample lamp generating 1330 lumens with just 8.7 W of input power. It appears that we are soon to have the "21st Century Lamp" performance levels within commercial LED products.
