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Industry Standard
Dimming with LED
LED light fixture
Life and Light output
How do LEDs produce light

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How does the wide temperature tolerance expand their application?

LEDs work more efficiently in cold temperatures and their lifecycle is extended since the cold air offers a passive heat absorption mechanism. This gives LEDs an advantage in various applications like ice-skating rings / tracks, refrigeration applications, and lighting public places in colder countries.

Why are LEDs advantageous in lighting underground caves?

Underground stalactites are damaged by the heat of halogen lamps. LEDs, with their long lifecycle also require much less maintenance than traditional light sources.

How has automobile lighting benefited from LEDs?

LED lighting, although more expensive than its incandescent predecessors in automobile lighting, works as a cost effective solution. This is because its digital features simplify wiring, controls and the installation process. LEDs offer high-quality light in terms of color-rendering and they provide lighting solutions that result in comfort and a more comfortable, enjoyable driving experience. However, the biggest advantage of LEDs is their long lifecycle and resistance to vibration.

What are the benefits of using LEDs in mining areas specifically?

Using LEDs in mining areas has the following benefits:Better focus on work areaSafer enivronment due to low glare and LEDs being cool to touchNo start-up timeBeing solid state the workplace is easier to make it explosion-proof and vibration-proofLED can be powered with AC or DC and has longer battery backup with option of charging battery with solar panelsLED lights can be installed with satellite connection and can have integrated motion sensors and GPS, which offers remote access to live information about usage, location, and condition along with offer further security features.

How can flexibility in changing colour temperature offer more comfortable environments?

LEDs offer the capability of changing from warm white to cool white through digital control of the LEDs. This can be used in indoor or partly outdoor environments where the illumination level and color temperature can be adjusted to match the outdoor conditions (e.g. sunny, clear sky or overcast) depending on the feel required in the space.

How can the color changing ability of LEDs be advantageous in retail and display environments?

In retail and display environments where the range of products change by the season, the colors can be changed to match the type of product on display. For example, electronic goods may require a cool white light while a warmer tone may be required for fabrics. When a fashion season has red as a theme, the store can utilize a color of light with more red in its spectrum to enhance and bring out the vibrancy of the display.

What does one need to take into consideration when choosing a light source for art galleries and mus

It is important to compare the spectral power distribution of the light source (SPD), the Color Rendering Index (CRI), Correlated Color Temperature (CCT) and the Color Quality Scale (CQS) of the light source relative to the nature of exhibits / displays to be lit. The illumination level needed within the exhibition and the hours of operation also need to be considered. This is a specialist area, and proper set up of lighting reqiures the advice of a consultant such as the curator.

What are the advantages of LED over neon in signage applications?

LEDs have the following advantages over neon:Power consumption: LEDs use much less power than neon to deliver the same light output.Versatility: LEDs offer a far wider a range of products and configuration of solutions than neon. Neon lights have limitations due the nature by which they produce light and the way they are fabricated.Heat dissipation: LEDs produce less heat than neon.Safety: Neon lights runs on high voltage and are unsafe when positioned in places where people can touch them.Neon lights use fragile glass tubes.Color range and effects: LEDs offer a wider palette of colour and color changing effects through digital control.Maintenance: LEDs need virtually no maintenance compared to neon.

What aspects need to be taken in consideration when replacing a light source with LEDs in a retrofit

The lamp base / holder screw fixing position.The physical dimension of the LED lamp and how it fits into the existing housing.The electrical characteristics of LEDs compared to the existing system. (mains voltage, low voltage, control methods).The location and size of the light emitting surface in relation to the luminaire reflector and in comparison to the original light source.The light distribution, lumen output and other photometric properties like color temperature in comparison to the original light source.The heat generated by the LED during operation and the maximum operating temperature.

What are the considerations that need to be taken into account when integrating LEDs into interior /

Here are some of the aspects that need to be taken into consideration: when Luminaire spacing and layout.Ways to prevent a view of the light source and minimize glare.Ventilation/cooling of LEDsWiring accessAccess to LEDs in case of maintenance or replacement.Location of driver, if not integrated in luminaire.Switching / dimming capabilities, or control type and location.

What are the strategies in the development of LED technology that are helping to reduce the cost of

Some of the strategies for reducing the cost of LEDs in the future are: Reduction in the production process.Simplification and reduction in the number of components.Introduction of new materials.

What are the economic advantages of using LEDs over conventional light sources?

Although the initial cost of conventional light sources is less than LEDs, the operational and maintenance costs of LED are significantly lower. LEDs, having a longer life, reduce maintenance and lamp replacement cost. . Because LEDs need to be replaced less frequently, the owner spends less on new lamps and the labor needed to change them. LEDs also consume less energy; thus the overall cost of a LED system can be significantly lower than that of conventional lighting systems. Most applications with LEDs offer a payback period as low as three to four years.

Why do LEDs have a higher initial cost than conventional light sources?

LEDs are made of electronic components that need to be packaged together to offer long lasting efficient light sources to the end user. Apart from the LED chip itself which has sapphire and gallium in the semiconductor, the process of packaging with materials like ceramic, rare earth phosphors, silicone, solder and gold wire add to the overall cost. White LEDs require further tests for calibration and standardization.

What are LEDs?

LEDs are light emitting diodes. These are electronic components that convert electrical energy directly to light through the movement of electrons within the material of the diode. LEDs are important because due to their efficiency and low energy, they are beginning to replace most conventional light sources.