A shelf system includes first and second support rails, a wall panel disposed between the first and second support rails, first and second electrical supply rails disposed within a front surface of the wall panel and electrically insulated from the first and second support rails, a power supply electrically connected to the first and second supply rails, and at least one LED light fixture mounted on the first and second support rails, such that the light fixture is electrically connected with the first and second electrical supply rails to provide electrical current from the power source.