ClueLuma

Lighting inventory power calculator

Add the rated input of complete fixtures and convert watts to kilowatts; include driver or ballast input.

P=N×Wfixture1000P = \frac{N \times W_{\text{fixture}}}{1000}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

count
W
kW

Worked example

Given

  • NN = 120 count
  • WfixtureW_{\text{fixture}} = 42 W
P=120×421000=5.04P = \frac{120 \times 42}{1000} = 5.04

Symbols and units

SymbolMeaningUnit
PPtotal lighting powerkW
NNfixture countcount
WfixtureW_{\text{fixture}}power per complete fixtureW

Related calculators

Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.