Exposed some crops in Flanders a strong increase, and sales channels have welcomed this development. Information services seek plantecofysiologische borders exposed crops and breeders want better (faster) screening methods in the analysis of plant suitability illuminated cultivation. Growers seek a more optimal use of their production resources. Lightman focuses on plant fitness, plant response and practical questions related to the use of artificial light. Despite lettuce, tomato and strawberry each with a specific approach to the use of artificial light, was chosen for a joint approach. Questions often have the same background and experience exchange between cultures is stimulating.