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You are here: » Calculators » Lighting Sunday, August 1, 2010 
Lighting
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Lighting

5 easy steps to work out number of fittings required (Indoor Only)

1. Room Width m
2. Room Length m
3. Room Height m
Total: Room Area m²
4. Type of Luminaire
   
Result: Reflectance Factors
5. Illumination level required
Please refer to NZS6703 for complete illumination levels
  Maintenance Factor
Answer: Minimum fittings required


The calculations are based on standard 70/30/10 reflectance values with a maintenance factor of .8 for Lamp lumen depreciation and Luminaire lumen depreciation. All flourescent lamps are colour 84 series. Space to height mounting ratios can be affected if the incorrect luminaire is chosen (giving a uniformity ratio that may be less than what is recommended).
The minimum suggested quantity is a guide only based on average indoor conditions.

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If you require to know what type of lamps are required for specific applications you can find this information in our 'Industry Updates' section or press here http://www.stewartsgroup.co.nz/19/news/13.html
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