Lighting. Monday , September 24th , 2018 - 20:47:31 PM
It may be easier to think of colored LEDs (RGB) and white LEDs in terms of another industry: Automotive. RGB LEDs are like the internal combustion engine: Reliable, abundant, easy to use and manufacture, and fairly well developed in terms of the potential for new or breakthrough technologies. There are lots on manufacturers and each has their own set of patents and "tricks of the trade" to help give themselves some marketing leverage over the competition. White LEDs are like the alternative energy industry for transportation: Quite varied, still relatively "new", still needing to be market proven, more expensive, more challenging to manage. There are many manufacturers, each using a different technology or combination of technologies to achieve what they believe is the "the next big thing." Following this analogy, RGB LEDs are mature enough to compete on cost alone and the drop in costs is what fuels new applications for colored LEDs that had not been thought of previously. White LEDs, on the other hand are still developing technically and should not be shopped based on cost alone. The need for quality and longevity is what fuels the further research and development into white LEDs.
LED is regarded as the most effective form of low energy lighting available and many in the industry expect it to have a market share of around 50-60% by 2020. Unlike some other forms of lighting, in particular incandescent, LEDs are efficient because most of their electrical energy goes towards the light-production process. An incandescent bulb, for example, requires its filament to glow white-hot before producing visible light, thus heat is generated as a wasteful by-product which uses around 80% of electrical power. In comparison, less than 10% of LED electrical consumption is emitted in the form of heat.
A very ordinary garden during the day can be made to look like something quite extraordinary at night. It's similar to the way ladies use makeup in order to conceal features which they do not like and exaggerate those that they are proud of. Artificial light (any light source other than the sun) is like makeup for your garden. It is predictable and can be manipulated in order to enhance certain objects and change the look and feel of an area that would appear completely different during daylight hours.
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