Criticism of the intensity of light is unfounded because it is one at all. The light spectrum is important because the plant just needs this just because ne light shines like the sun that does not mean that the plant for a long time benefited from it. This lamp is consistently of high quality and great for the plants during the winter months and also to support for the Tagverlängerung. I can recommend the lamp each wants to ramp up its plant even more.