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One footcandle is one lumen per square foot. 1 fc = 1 lm/ft2. The Illuminating Engineering Society the recommended lighting level will be near the lower level of the range shown in the table below when the size and/or contrast Where LPF is the lumens per fixture and N is the number of ... Return Document
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Traditional methods include light source luminous efficacy (source lumens per input watt) and Several commercial under-cabinet lighting luminaires have been tested following ASSIST s method. used to calculate the luminaire s application efficacy: Application Efficacy ... View This Document
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Proposed 2009 Senate Bill 1637 would increase tax credit for $1.80 to $3.00 per square foot for whole building or from $0.60 to The bulbs will come out at 30 lumens per watt (twice a Fluorescent Lamps Most common commercial lighting technology. High Efficacy: up to 100 lumens/watt ... Read Here
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DOE Commercial Lighting Solutions: www.lightingsolutions.energy.gov T8 or T5 fluorescent lamps must be rated at 80 CRI or higher and 90 lumens or higher per watt, provide as an attachment of all assumptions and formulas used to calculate the cost, estimated energy savings, ... Access Document
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Office/Commercial Space Calculate energy savings and simple Allows you to calculate (for accent lighting from a reflector lamp shining on a wall the footcandles at the center and the width and length of FOOT-CANDLES on the work plane is the number of lumens per square foot. Work Plane ... View Full Source
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One footcandle is one lumen per square foot. 1 fc = 1 lm/ft2. The Illuminating Engineering the recommended lighting level will be near the lower level of the range shown in the table below when the size and lumens per fixture LPF is the product of the number of lamps, NL, lumens per lamp ... Content Retrieval
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If you calculate the payback period under different scenarios, its sensitivity to the cost of the incandescent is low; The website seems commercial in nature, I'd like it even more if each number had lumens-per-watt with it.-69.87.199.95 22:18, 19 June 2007 ... Read Article
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Recommended for all commercial buildings with Calculate Average Illuminance Level (lumens per watt) Lumen Output 10 to 50,000 900 to 12,000 1,200 to 60,000 4,000 to 160,000 2,000 to 50,000 1,800 to 35,000 (lumens) Low-Pressure ... Get Document
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