LED Underground Lights Manufacturer Underground lighting can be defined as lighting that is done in the ground. It is also referred to as in-floor lighting especially when it refers to similar lighting done indoors.Floor recessed and ground lights will help lighting the paths in outdoor building and garden areas.LED underground light provide ground level illumination by having their lights pointed up from the ground. The intent of such lights is to highlight points in the landscape such as architectural features and cherished plants.Path lights are another most dramatic and common uses of underground lighting.Used in creating a guide on either side of a driveway, walkway or path. Serves safety & decorative purpose.