Lighting. Sunday , September 23rd , 2018 - 12:36:36 PM
To review a Color Rendering index is a comparison of our light source with an index of the same color temperature. A Correlated Color Temperature (CCT) is described in degrees Kelvin, and it is a comparison of our light source against a standard base line color model that has radiant power at all wavelengths Now we have talked about color temperature and the Color Rendering Index of a light source. In order to get a good picture of what the light source is going to do in our lighting design we need to consider both of them together. For example you can have two or more light sources with the same color temperature and they could be called warm but they render object colors differently. You can have Light sources with the same Color Rendering Index but different Correlated Color Temperatures and they could also render the object color differently. In order to get a more complete picture of how a light source is going to react to a surface you need to use both the Color Rendering Index of the light source and the Color Temperature of the light source together.
If you have multiple light sources, you also have the option of changing the feel of the room by changing the combination of lights that are turned on. As most rooms are used for many different purposes, there are likely to be times when more light is needed for practical reasons, such as the children getting their homework done, but then more ambient lighting is desired for relaxing in the evening.
Technology has evolved rapidly in the lighting industry over recent years and shows no signs of abating. With the continued legislation against inefficient light bulbs and consumers looking to make savings, energy efficient bulbs will be the way forward. LED, CFL and halogen energy savers are the main options and each type has a role to play depending on the situation and lighting requirements. Always make sure to buy good quality lighting from a trustworthy company and avoid those out to make a quick profit, especially where LED is concerned. Finally, remember when choosing light bulbs an energy saving calculator is the best way to compare technologies.
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