The amount of space that should go between each light.How to create a focal point, or an even distribution of light.They are adequate for a first pass estimate. Where your lights should go on the ceiling. These estimators provide a rough lighting layout for industrial (high ceiling area) or office (low ceiling area) open spaces assuming average or typical surface reflectances on walls and ceilings in your shop, gym, parking garage, warehouse, office, or commercial space.If you're still in the dark about how to plan your recessed lights, get ready to learn. Wouldn't it be better if readers could see how to sketch out their rooms? If they could visualize how to space out their fixtures? Or observe different lighting configurations? The business of mapping out your lights is so visual anyway, of course a solid visual aid would come in handy. We were racking our brains about how to bring that information to you in an even more accessible way. It gives you step-by-step instructions about how to create an ideal lighting scheme in any room by adding recessed cans. You may have come across our very popular How To Layout Recessed Lighting in 4 Easy Steps article.