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Provide much better insulation than single-pane An active solar collector system can produce about 80 to 100 gallons of hot water per day. A passive system will have a Careful mixed use zoning can make commercial, residential, and light industrial areas more accessible for those ... Read Article
Color Rendering Index - Wikipedia, The Free Encyclopedia
The color rendering index (CRI), sometimes called color rendition index, is a quantitative measure of the ability of a light source to reproduce the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in color ... Read Article
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Measurement used to describe how much light is contained in a certain area. lighting per square foot of area (lumens/ft 2) (Commercial Uses Only). Lighting zone Operating Hours, LPD Limit and LD Limit Light Sources and Fixture ... Access Full Source
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Helps us to numerically quantify light in terms of how much, Lumens Per Watt is an expression of how many lumens we get from a light source compared to Energy legislation restricting watts consumed per square foot and total system wattage are appearing all over the country. ... Read More
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The short life and low efficacy (lumens per watt) of this source limits its use mostly to residential and decorative commercial lighting. Efficacy varies with wattage and filament type, but generally ranges from about 7 times as much light per watt as incandescent and about twice as much as ... Access Document
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The efficiency of incandescent and halogen tungsten lamps is 12-24 lumens per watt, lumen* per watt. These lamps offer poor efficiency as much of the power they consume is converted to heat rather than light. LED lighting foot candle falling on one square foot of area. Low Power ... Access This Document
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Flux per unit area) measured in lumens per square foot (foot-candles) This includes both “required” and “surpl us” parking areas for residential, commercial and justifiable lighting. The standard street light shall normally consist of a wood pole and bracket with a pendant luminaire. ... View Doc
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