I bescheine my chili plants with this lamp while the Tagnachtgleichheit in the spring has not been reached. Here I was able to achieve good results. Healthy Leaf color without high heat and relatively low power consumption. The lamp is used good 12 hours a paper clip light that is connected to a simple timer. For an area of 50cm x 50cm I have the walls of the chamber equipped with reflective film (also heaven). The lamp is now for 7 weeks in use.