lux / luxe are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
lux: (noun) a unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle.
luxe: NA
lux: l·AH·k·s
luxe: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)