Is it the next generation ?
So for you fee free to read the next article on LEDs, learn more about it.
Did you know that Incandescent lamps convert most of the power they draw into infrared (IR) or radiated heat; less than 10% of the power they use is actually converted to visible light.
Excessive heat (IR) from lighting presents a burn hazard to people and materials.
Fluorescent lamps convert a higher proportion of power into visible light, around 20%. HID lamps
can emit significant ultraviolet radiation (UV), requiring special shielding and diffusing to avoid
occupant exposure. LEDs emit virtually no IR or UV. UV is extremely damaging to artwork, artifacts, and fabrics, and can cause skin and eye burns in people exposed to unshielded sources.
Using LEDs to Their Best Advantage
LEDs are often touted for energy efficiency and long life. Lighting selection is based on many other factors as well. This fact sheet explores some of the unique attributes of LEDs, which may make them the right choice for some applications.
How do building owners, facility managers, and lighting specifiers choose lighting products?
- Purchase price
- operating costs (energy and maintenance) are usually the top concerns
- the application. Here are some unique LED characteristics:
- Directional light emission – directing light where it is needed.
- Size advantage – can be very compact and low-profile.
- Breakage resistance – no breakable glass or filaments.
- Cold temperature operation – performance improves in the cold.
- Instant on – require no “warm up” time.
- Rapid cycling capability – lifetime not affected by frequent switching.
- Controllability – compatible with electronic controls to change light levels and color characteristics.
- No IR or UV emissions – LEDs intended for lighting do not emit infrared or ultraviolet radiation.
- First of all the question is to know what makes LEDs so different?
Accordinn to the article, What makes LEDs different from other light sources?
LEDs are semiconductor devices, while incandescent, fluorescent, and high-intensity discharge (HID) lamps are all based on glass enclosures containing a filament or electrodes, with fill gases and coatings of various types.
LED lighting starts with a tiny chip (most commonly about 1 mm2) comprising layers of semi-conducting material. LED packages may contain just one chip or multiple chips, mounted on heat-conducting material and usually enclosed in a lens or encapsulant. The resulting device, typically around 7 to 9 mm on a side, can produce 30 to 150 lumens each, and can be used separately or in arrays. LED devices are mounted on a circuit board and attached to a lighting fixture, architectural structure, or even a “light bulb” package.
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lighting on and near industrial equipment, elevators and escalators, and ceiling fan light kits.
LED Fixture Dimensions 6” high by 17” long Watts 118 Initial lumens 6,400
Photo credit: Beta Lighting
Metal Halide Fixture Dimensions 11.5” high by 15” wide Watts 175 Initial lumens 10,400
Photo credit: Lithonia
Photo credit: GE Lumination
Traditional light sources will burn out sooner if switched on and off frequently. HID lamps also have long warm up times and are unable to re-start until cooled off, so rapid cycling is not an option. LED life and lumen maintenance is unaffected by rapid cycling. In addition to flashing light displays, this rapid cycling capability makes LEDs well-suited to use with occupancy sensors or daylight sensors.
LEDs may offer potential benefits in terms of controlling light levels (dimming) and color appearance. However, not all LED devices are compatible with all dimmers, so manufacturer guidelines should be followed. As LED driver and control technology continues to evolve, this is expected to be an area of great innovation in lighting. Dimming, color control, and integration with occupancy and photoelectric controls offer potential for increased energy efficiency and user satisfaction.
No IR or UV emissions
A Strong Energy Portfolio
for a Strong Emerging countries however third world countries!
Energy efficiency and clean, renewable energy will mean a stronger economy, a cleaner environment, and greater energy independence for Country with limited energy power or production capacity ( Petrol, natural Gas, Water, Sun and Wind. ).