Financing

Like the idea of new, energy efficient LED lighting but need financing to get it?

Financing

We are committed to providing you a comprehensive financial solution that will remove your upfront costs. Lights, Lux, & Lumens is a Trade Pro Alliance member with PG&E and can submit your project directly to them for On Bill Financing (OBF) consideration.

Help & Support

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Help & Support

Do you have a general question? Are you considering switching to LED? Are you interested in a quote? We're always available for you. We look forward to meetign you!

Rebates

Take advantage of our resources and get instant rebates for your business!

Rebates

At Lights, Lux, & Lumens, we not only help you design your business space with efficient, energy reducing LED lighting, we also give you instant rebates to offset your up-front costs. The rebate amounts are clearly shown in our customized proposal and the total amount of the rebates is instantly subtracted from your overall cost.

1. General Questions

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.

The term solid state lighting is used because the electronics produce light directly from solid materials in which the electrons are embedded. This is unlike other technologies, for example fluorescent technology, which requires a gaseous discharge medium to initiate production of light.

LED technology is constantly changing. Rapid innovation continues to improve the performance of LED on an almost daily basis. Future-proofing of LED modules allows luminaire manufacturers to switch from one generation to the next improved generation without major retooling or changes in luminaire design, offering backward compatibility with drivers.

LED chips are mass produced in millions and there are inevitably slight differences in color appearance and light output. Binning is way of sorting the chips so that all the LEDs from one particular bin look the same and have similar light output.

A light engine is the LED equivalent of a conventional lamp. It normally consists of a LED chip mounted on a circuit board that has electrical and mechanical fixings, meaning it is ready to be fixed in the luminaire. Note that the light engine may not consist of only one chip; it may be an array of 9 or 16, sometimes with a phosphor coating.

LEDs have no gases, filaments and no moving parts to fatigue. They provide light through a one-step process that takes place within the diode. There is no glass to break or screwed contacts to loosen.

2. Costs

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.

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.

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.

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.

3. Applications:

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 LEDs
Wiring access
Access to LEDs in case of maintenance or replacement.
Location of driver, if not integrated in luminaire.
Switching / dimming capabilities, or control type and location.

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.

Lights built into wardrobes can be of the following types:

Low voltage LED lights with a magnetic switch that comes in two components; one is fixed onto the wardrobe door and the other to the wardrobe itself. When the door is opened the contact is broken and power is sent to the light.
PIR switches with an infra-red motion sensor that activates the light when the wardrobe is opened.

LEDs can produce concentrated beams of light at specific frequencies of light. While sunlight comprises the entire spectrum of light, LEDs can be designed to emit specific parts of the light spectrum that activate certain photoreceptors in the plant. For example, blue light promotes phototropism and cryptochromes which help germination and elongation of the plant, while red light stimulates phytochromes which help the plant to flower at the optimum time. Regulation of the spectrum of light based on the plants life cycle promotes faster growth, and a stronger plant than what would be produced under sunlight conditions.

Note that the light output of LEDs lessens at higher temperatures. You should make sure that the luminaire is suitable for the environmental conditions.

Most insects are primarily attracted to Ultra-violet rays, which help them forage, navigate and select mates. For example, Indian moths are attracted to UV-365nm and green light-500nm. LEDs do not have UV content and hence do not attract many insects compared to conventional light sources.

LEDs do not emit ultra-violet light and do not carry heat in the beam, unlike their conventional counterparts. This helps keep food fresher in refrigerators and cold stores.

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.

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.

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.

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.

LEDs have the capability to offer “biologically optimised” solutions that simulate the color temperature of the sky. This have been proven to improve concentration and maintain alertness of students in classrooms. It has successfully dealt with a kind of morning tiredness in mostly observed in young people. One way of creating the appropriate color temperature is by using a combination of independently controlled blue and white LEDs.

Use of tunable LEDs in aircrafts can help alter the circadian rhythms of the passengers. The time-controlled simulation of daylight, noon and dusk color temperatures with the LEDs in the aircraft can help passengers to gradually adapt to the time zone of the destination.

LEDs have the capability to offer “biologically optimised” solutions that simulate the color temperature of the sky. This have been proven to improve concentration and maintain alertness of students in classrooms. It has successfully dealt with a kind of morning tiredness in mostly observed in young people. One way of creating the appropriate color temperature is by using a combination of independently controlled blue and white LEDs.

3. The Environment

LEDs are more efficient than most other light sources, so they usually consume less energy for a given task or at a spesific light output. Also, they do not contain hazardous materials such as toxic mercury. Moreover, LEDs have a longer lifespan and hence reduce the frequency of disposal of lamps.

LEDs normally use less power for a given application compared to traditional halogen and fluorescent sources. As such, the overall kW/hr consumption per year is less, this helps reduce the overall CO2 emissions.

LEDs are primarily made of electronic components like PCBs, diodes, semiconductors etc. Therefore, they must be treated in the same way that traditional electronics are treated. They collected separately from household wastes and must be treated the same as standard electronic equipment

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