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10 cards from this deck
Watt
Lumen
Lux
Lux meter
5000 lux
0.5
0.4
0.8-1.0 metres from floor
Lux=LumensArea (m2)\text{Lux} = \frac{\text{Lumens}}{\text{Area (m}^2\text{)}}Lux=Area (m2)Lumens
Li=Lo×WF×E×WAFAL_i = L_o \times WF \times E \times \frac{WA}{FA}Li=Lo×WF×E×FAWA
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