The business case is variable depending upon a number of factors applicable to your building. Important variables include cost of electricity, hours of usage, maintenance costs, new facility or renovation works. LED lights save 50-80% energy over energy-saving CFL, incandescent or halogen lights. In Singapore, replacement to LED lights can provide payback from the electricity savings of 1.3 years. There are additional savings from lower maintenance and air conditioning costs. Greenmax provides 2-years warranty for LED lights. Therefore, you get guaranteed savings; see more.
When you're looking for LED lighting, another thing to consider is the colour of the light. Depending on where the light lands on the colour temperature spectrum, lights can be of all colours: red, yellow, green, blue and shades of white. The shades of white range from warm to cool white. The lower the colour temperature, the more yellow your white light will appear. If the light is higher on the colour temperature scale, it will appear to cast a cool, bluish hue. Greenmax specifies LED lighting colour temperature scales: warm white 2,800-3,200k and cool white 6,000-6,500k.
An LED light does not burn out like a standard lamp, so individual diodes do not need to be replaced. Instead, the diodes gradually produce lower output levels over a very long period of time. A 1.2 meter LED tube has 288 LEDs, if one LED fails, it does not produce a complete fixture outage.
An LED lighting conversion usually includes three types of solutions: complete replacement of the existing fixtures, retrofit of existing fixtures with LED lights, or simple plug-compatible bulb replacements. For each of these, the existing wiring and power can often be used. Depending on the situation, we will adapt accordingly the installation as needed to assure the LED fixtures match your site electrical systems. Greenmax is able to provide a solution to match your needs.
LED Lights can be designed to be dimmable. Your ability to dim LED is a function of the specific lighting fixture you choose.
The watt (symbol: W) is the SI unit of power. A light bulb with a power rating of 100W is turned on for one hour, the energy need is 100 watt hours (Wh) or 0.1 kWh. More on kWh.
Lumen measures “luminous flux”. This is a measure of the total number of packets (or quanta) of light produced by a light source (e.g.. a LED tube). This is the “quantity” of light emitted by the light source. A standard 60-watt incandescent bulb, 10-watt compact fluorescent light (CFL) bulb, and 7-watt LED bulb puts off about 600 lumens. Another way to put it: LED light is rated at 90 lumens per watt, CFL produce 60 lumens per watt while traditional incandescent bulb emits only 10 lumens per watt. The more lumens, the brighter the light is. LED light bulbs provide many lumens for few watts compared to incandescent bulbs. Since this is the case, it's better to find a bulb that has low wattage but high lumens because it will help you save on your energy bill, more about Lumens.
CRI, Color Rendering Index is a measure of a light source's ability to show object colors "realistically" or "naturally" compared to a familiar reference source, either incandescent light or daylight. The higher the CRI number, the greater the number of objects lit by the light source that will appear natural. Incandescent bulbs have a CRI of 100 while most LED Lights have CRIs of 80 to 85.
The beam angle of a LED light is the angle at which the light is distributed or emitted and it comes in a variety of angles from, 4 degree to 60 degree with some of the larger ones up to 120 degree.

For most domestic household ceiling fitted appliances a beam angle in the 30-40 degrees will be sufficient given the standard height of ceilings and the range, spread and number of LED lights in the area.

The lifespan of an LED light is vastly longer than that of incandescent, fluorescent or other light sources, generally lasting 30,000 hours or longer. Although the LED never really burns out, product lifespan is measured by lumen depreciation.

The Illuminating Engineering Society (IES) currently recommends calculating the life of an LED as the point at which the LED reaches 30 percent lumen depreciation.

A 30,000-hour rating is not equivalent to lamp life rating. LED light life is rated where it has reached 30 percent lumen depreciation. At 30,000 hours an LED would still be operating, but at a decreased lumen output.

Based on how long a fixture is illuminated per day, here’s what 30,000 works out to:

24 hours a day                     3.4 years
12 hours a day                     6.8 years
4 hours a day                       20.0 years

You also want to find an LED lighting that offers a long lifespan. Most offer between 30,000 and 50,000 hours of light. When you look at a Lighting Facts label on the light bulbs, they typically list the lifespan in years. This is based on a standard of using the light for 4 hours per day of the year.

LED is the common abbreviation for a light-emitting diode. Each individual LED consists of a semiconductor diode that emits light when a voltage is applied to it. The electronics industry has used LED technology for several decades as indicator lights for various electronic devices. In more recent years, LED technology has progressed to the point where it is viable for general lighting applications.
LED Lights contain no mercury, making them more environmentally friendly than some popular alternatives. Plus, most LED lighting fixtures contain no lead.
Federal Communications Commission (FCC) is an independent government agency that regulates interstate and international communications by radio and television and wire and cable and satellite.

With exception of certain types of products, most electronic devices sold in the US market must be FCC approved. The process is to submit a pre-production unit to FCC for electromagnetic compatibility testing. If the pre-production unit passes the test, then the product can proceed to manufacturing and be sold to the public.

The symbol CE stands for “Conformité Européenne” which is French for “European Conformity”. When the symbol is affixed to a product it is the manufacturer’s declaration that the product conforms to the essential requirements of all European directives. The essential requirements would include Safety, public health, Electromagnetic Compatibility, and consumer protection, among other things.

CE marking is a mandatory requirement for selling all products that it applies to into EU Countries. It implies that the product has been subject to all applicable evaluation and assessment procedure(s) as defined by the CE directives. CE marking is not a quality symbol. It only indicates that the product conforms to the directives set forth by the EU. It is not an indicator of the overall quality of the product.

RoHS is the acronym for Restriction of Hazardous Substances. RoHS, also known as Directive 2002/95/EC, originated in the European Union and restricts the use of specific hazardous materials found in electrical and electronic products. All applicable products in the EU market after July 1, 2006 must pass RoHS compliance.

The substances restricted under RoHS are lead (Pb), mercury (Hg), cadmium (Cd), hexavalent chromium (CrVI), polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE).

The restricted materials are hazardous to the environment and pollute landfills, and are dangerous in terms of occupational exposure during manufacturing and recycling.

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