Hydroponics is a method of growing plants using mineral nutrient solutions, in water, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel, mineral wool, or coconut husk
Plantmax conversion series lamps allow you to use the same fixture/ballast for different stages of plant growth. From the vegetative to the flowering stages, Plantmax conversion series have it all.