This document is a brochure from Lucibel that discusses lighting solutions for offices. It provides recommendations for light levels and quality metrics like Uniformity of Glare Rating (UGR) and Color Rendering Index (CRI) for different types of office spaces. It also includes an example return on investment calculation showing the savings from LED lighting solutions compared to conventional lighting over time due to lower energy costs and maintenance costs.

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LED 60 to 97
Fluorescent tube or fluo-compact lamp 60 to 97
Incandescent lamp 100
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How to
illuminate your spaces
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Return on investment
(ROI)
Office building - example
Maintenance cost / year
Conventional
solutions
LED
solutions
Equipment + installation costs 61 574€ 91 881€
Energy cost / year 10 231€ 4 229€
Maintenance cost / year 4 533€ 41€
Project power (KW) 35 14.5
Global savings / year 10 494€
Percentage of energy saving 59%
Return on investment 34 months
Saving after 10 years 74 629.63€
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Mi (lux) UGR CRI
OFFICES
Filing, transcript, etc. 300 19 80
Writing, typing, reading, data processing 500 19 80
Industrial design 750 16 80
CAD workstations 500 19 80
Conference rooms and boardrooms 500 19 80
Reception 300 22 80
Archives 200 25 80
COVERED CAR PARKS
Entrance and exit ramps
day night day night day night
300 75 25 25 40 40
Passageways 75 25 40
Parking spaces 75 - 40
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