<prompt> What is the recommended illumination for general office work?100 lux400 lux900 lux1000 lux  <response>: The recommended illumination for casual reading is 100 lux, 400 lux for office work, 900 lux for fine assembly and for watch making 2000 - 3000 lux is recommended. Ref: Parks Textbook of Preventive Medicine, 17th Edition, Page 519. 