LED Lighting

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INASIA Thailand is a lighting specialist in Koh Samui, Thailand designs, supplies and installs LED lighting solutions for private villas, resorts, hotels, commercial buildings, condominiums, apartments, entertainment venues and a host of other commercial building where low cost, yet efficient durable lighting is a prerequisite.

The economics, low power consumption and efficiency, long lamp life of LED has made it today’s popular choice for general and feature lighting.

With the availability of many different attractive designed light fixtures, a mirage of changeable colors, various remote options, variable light intensity, as well as modern sensitive touch switches has only confirmed the fact in the future; all light sources will be powered by LED.

LED-Light Emitting Diode

LED lamps are used for both general lighting and special purpose lighting. Where colored light is required, and come in multiple colors, which are produced without the need for filters. This improves the energy efficiency over a white light source that generates all colors of light then discards some of the visible energy in a filter.

LEDs have the characteristics of long life expectancy and relatively low energy consumption. The LED sources are compact, which gives flexibility in designing lighting fixtures and good control over the distribution of light with small reflectors or lenses.

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LED lamps have no glass tubes to break, and their internal parts are rigidly supported, making them resistant to vibration and impact. The lamps can be made dimmable over a wide range and no minimum current is needed to sustain lamp operation. LEDs using the color-mixing principle can produce a wide range of colors by changing the proportions of light generated in each primary color. This allows full color mixing in lamps with LEDs of different colors.

LED lights have also recently become very popular in gardening and agriculture. First used by NASA to grow plants in space, LEDs are now used in home and commercial applications for indoor horticulture. These lights are attractive to indoor growers since they do not consume as much power, do not require ballasts, and produce a fraction of the heat of HID lamps.Since there is a significant reduction in heat, time can be extended between watering cycles because the plants transpire less under LED grow lights.

LEDs maintain consistent light output even in cold temperatures, unlike traditional lighting methods. Consequently, LED technology may be a good replacement in areas such as supermarket freezer lighting and will last longer than other technologies. Because LEDs do not generate as much heat as incandescent bulbs, they are an energy-efficient technology for use in applications such as freezers.

A LED light bulb can be expected to last 25–30 years under normal use and power consumption is a fraction of that of incandescent bulbs.

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Advantages

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  • Efficiency: LEDs produce more light per watt than incandescent bulbs. Their efficiency is not affected by shape and size, unlike Fluorescent light bulbs or tubes.
  • Color: LEDs can emit light of an intended color without the use of the color filters that traditional lighting methods require. This is more efficient and can lower initial costs.
  • Size: LEDs can be very small (smaller than 2 mm) and are easily populated onto 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 use in applications that are subject to frequent on-off cycling, unlike fluorescent lamps that burn out more quickly when cycled frequently, 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 burn-out 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 1,000–2,000 hours.
  • 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.
  • Toxicity: LEDs do not contain mercury, unlike fluorescent lamps.

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