In-ground Linear LED illuminated tile from Optic Fibre & LED Lighting Solutions LED Lighting The in-ground Linear LED illuminated tile, available from Optic Fibre & LED Lighting Solutions , is an in-ground LED fitting designed for interior and exterior architectural lighting applications. Features: Available in white, warm white, blue, green, red, amber and RGB colour changing Stainless steel housing with frosted toughened glass, totally waterproof, can be suitable with any humidity and temperature. Working temperature: -25°C to 75 °C RGB can be integrated into almost any lighting control system such as DMX, Dynalite, CBus, DALI and more