Illuminance Recommendations

The data in the table below is extracted from “Handbook of Lighting Design”by R ü diger ganslandt and Harald Hofmann.

Notes：Recommended minimum illuminances (E) for typical interior lighting tasks. The illuminances are aimed at a lighting level appropriate to the specific visual tasks to be performed in the space or in a part of the space.They do not include architectural lighting components or other aspects for the specific situation. The average horizontal illuminances quoted are in accordance with national and international standards. Using the light sources indicated lighting qualities can be achieved to meet the requirements of the particular visual task economically.