The arrangement of luminaires in relation to each other and their distance from walls is part of good lighting design. In the concept and design phase of a project, rules of thumb help to determine the quantity and arrangement of luminaires such as downlights, spotlights and wallwashers, even without a lighting calculation. This whitepaper explains the most important rules of thumb for your lighting design.
Tables contained in ERCO data sheets will help you to verify the approximate planning for a specific luminaire. The final planning is carried out with the help of photometric data and a light calculation programme.