Inputs
Results
Assessed watts
--
W
Lighting power density
--
W/m2
Base normal-lighting LPD
--
W/m2
Adjusted reference LPD
--
W/m2
Reference comparison status
--
Emergency scope
--
Review note
--
Calculation details
- Assessed watts
- -- W
- Lighting power density
- -- W/m2
- Base normal-lighting LPD
- -- W/m2
- Adjusted reference LPD
- -- W/m2
- Reference comparison status
- --
- Emergency scope
- --
- Review note
- --
Important notes
- Do not label this comparison as NCC compliance without edition, jurisdiction, building class, control profile, and emergency-scope review.
- Emergency lighting and normal lighting scopes must be recorded separately where the project requires that split.
Formulas
- \(\displaystyle LPD = \frac{W_{\mathrm{assessed}}}{A}\)
- \(\displaystyle LPD_{\mathrm{reference,adjusted}} = LPD_{\mathrm{reference}}(1 + a)\)
Calculate lighting W/m2 and compare it with an editable project reference without declaring compliance.
Lighting Power Density Calculator is a planning aid. Keep the target source, product data, measurement method, and project assumptions with the result. Confirm compliance, installation, certification, and safety decisions with the responsible professional.