Lutron Electronics’ stairwell LED fixture has an integral Lutron LED driver and is available in two, 4,000K color temperature, 2-ft. models: 17W and 1,500 lumens and 30W, 2,400 lumens. It comes preprogrammed for occupied and unoccupied levels; 50% high-end/10% low-end or 80% high-end/20% low-end. Light levels also are field-programmable.