The STL H GROWLIGHT optics are a LUXLED project, they are used to concentrate and direct the light only where needed, without dispersion; our optics are one of the factors of the very high efficiency of our projectors. In addition to this, the optics also act as gaskets giving the STL front, together with the aluminum screen, a perfect seal against water. In fact, the protection of the STL H front is IP69K!
