An illuminated shelf system, comprising: a first support rail (104; 106; 170; 172) and a second support rail (104; 106; 170; 172); a wall panel disposed between the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172); a first electrical supply rail (112; 114) and second electrical supply rail (112; 114) affixed to a front surface of the wall panel and insulated from the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172); at least one fixture (136; 138) removably mounted to the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172), the at least one fixture (136; 138) including a first electrical contact surface (156; 158) and a second electrical contact surface (156; 158); an array of light emitting diodes disposed within the at least one fixture (136; 138), wherein, upon engagement of a mounted configuration of the at least one fixture (136; 138) to the first and second support rails (104; 106; 170; 172), a first end of the array of light emitting diodes comes into removable electrical contact with the first electrical supply rail (112; 114) via the first resilient electrical contact surface (156; 158) that is in electrical contact with the first end of the array of light emitting diodes, and a second end of the array of light emitting diodes comes into removable electrical contact with the second electrical supply rail (112; 114) via the second resilient electrical contact surface (156; 158) that is in electrical contact with the second end of the array of light emitting diodes, the first and second resilient electrical contact surfaces (156, 158) are each electrically affixed to opposing ends of the array of light emitting diodes; and a power supply in electrical contact with the first electrical supply rail (112; 114) and second electrical supply rail (112; 114) as to define an electrical circuit and configured to provide an electrical current to the array of light emitting diodes when the least one fixture (136; 138) is mounted to the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172). a first support rail (104; 106; 170; 172) and a second support rail (104; 106; 170; 172); a wall panel disposed between the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172); a first electrical supply rail (112; 114) and second electrical supply rail (112; 114) affixed to a front surface of the wall panel and insulated from the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172); at least one fixture (136; 138) removably mounted to the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172), the at least one fixture (136; 138) including a first electrical contact surface (156; 158) and a second electrical contact surface (156; 158); an array of light emitting diodes disposed within the at least one fixture (136; 138), wherein, upon engagement of a mounted configuration of the at least one fixture (136; 138) to the first and second support rails (104; 106; 170; 172), a first end of the array of light emitting diodes comes into removable electrical contact with the first electrical supply rail (112; 114) via the first resilient electrical contact surface (156; 158) that is in electrical contact with the first end of the array of light emitting diodes, and a second end of the array of light emitting diodes comes into removable electrical contact with the second electrical supply rail (112; 114) via the second resilient electrical contact surface (156; 158) that is in electrical contact with the second end of the array of light emitting diodes, the first and second resilient electrical contact surfaces (156, 158) are each electrically affixed to opposing ends of the array of light emitting diodes; and a power supply in electrical contact with the first electrical supply rail (112; 114) and second electrical supply rail (112; 114) as to define an electrical circuit and configured to provide an electrical current to the array of light emitting diodes when the least one fixture (136; 138) is mounted to the first support rail (104; 106; 170; 172) and second support rail (104; 106; 170; 172).