Thursday, 13 November 2008 23:31
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For HID applications, there are several solutions to consider based on height and needed foot-candles. Sample differentiations are listed below on several products.
Customers tend to judge their vendors based on the appearance of their facilities and merchandise. High Bay lighting systems can have a tremendous impact on customers’ perception and employee productivity.
Improved Color Rendering
The color rendering of a light source describes that source's ability to accurately render the colors of illuminated objects. As a general rule, the higher a light source's Color Rendering Index (CRI), the better the lamp will make objects appear. The graph below displays the CRI advantage High Five fluorescent technology provides.
The graph above shows:
- 286% Improvement compared to High Pressure Sodium
- 21-31% Improvement compared to Metal Halide
Vision research indicates that white light from the blue end of the spectrum enables higher visual acuity than light from the red-yellow end of the visible spectrum. As a result, High Five lighting provides for a safer and more productive work environment.
The Illuminating Engineering Society of North America reports that fluorescent luminaries with a CRI of 85 provide similar brightness impressions using 25% less lumens than lamps with a CRI of 60.
Color Shift
Especially critical to retail environments, HID lighting introduces color variation to a lighting design. High Five fluorescent technology is not effected by color shift and provides a consistent color temperature from fixture to fixture. 
Desired color temperature varies from lamp to lamp due to temperature differences in the arc tube.
Ultraviolet Light (UV)
UV light emissions cause fading and damage to plastics and fabrics. It can also discolor and crack the fixture’s lens, reducing light output and compromising the resistance of the plastic. High Bay fluorescent technology dramatically reduces UV exposure compared to HID at no extra cost.
Reduced Glare High Bay luminaries significantly decrease levels of visual disability and discomfort when compared to HID fixtures.
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