its all about the amount of lumens its puts out not the light plain and simple listen i dont care what people say about floros you can grow and flower with them with the result being maybe (MAYBE) a lil less yeild a friend of mine had an hps setup and a compact floro spectrum setup up both same wattage and damn there wasnt much of a difference in yeild and shit the weed was frickin great so i dont know why people say that floros wont grow LOOK AT THE LUMENS PEOPLE THE HIGHER THE LUMENS THE BETTER THE LIGHT FOR GROWING PLAIN AND SIMPLE