https://www.venture4x4.co.za/videos/lux-vs-lumens https://i.ytimg.com/vi/EvEgf9Cf2S8/maxresdefault.jpg Lux vs lumens: what the numbers on a spotlight actually mean A practical bench demonstration of the difference between lumens and lux. Using a 37 W fixture producing a constant 4,100 lumens, removing the reflector drops the measured lux at two metres from roughly 1,400 to 60 — the same light output, the same power draw, a completely different result on the surface you are trying to see. https://www.youtube.com/watch?v=EvEgf9Cf2S8 2026-06-11T00:00:00.000Z