Solar light soil. There is a focus on LED recessed floor registered or directly to ground. Focus is completely sealed to prevent ingress of moisture and is totally resistant to environmental elements and strokes. Very robust, transparent cover polycarbonate (PC) and stainless steel. Once you installed just the front, which can be seen tread. No maintenance. It is charged with solar energy during the Sayto, and emits light at night. Super compact and sealed. This type of lighting is ideal for replacing traditional halogen or incandescent lights. Ideal for outdoor lighting, indoor floor registered, Garden tours, roads, etc.