i-Lighting has released the Hardscape Retrofit Lighting System for installation in existing hardscape applications. The hardscape lighting system is designed with 5-millimeter wiring and has standard or customizable lengths with an option of 3-, 6-, or 9-inch light strips. It is compatible with the company’s iluma Rail, Stair and Landscape Lighting Kits. The LED lighting system uses 80 percent less energy than incandescent bulbs.