Talk about the standard LUX on the working surface of the workplace here. Special fine work requires 1500-3000lx. Very precise work requires 1000-2000lx. Fine work requires 500-1000lx. General fine work requires 300-750lx. General work requires 150-300lx. Relatively rough work requires 50-100lx. Rough work requires 20-50lx. General observation of the production process requires 10-20lx. Bulk storage requires 5-15lx.