Abstract: According to the present invention a low voltage storage warehouse lighting system has a plurality of switch sets, a plurality of light sources, and a timer-relay station. Each switch set comprises a plurality of light switches electrically connected in serial with one another via low voltage wiring. The switch sets are located proximate associated file aisles. The low voltage wiring is disposed within the racks. A light source is located above each file aisle. Each light source is associated with one switch set and each said switch set associated with one light source. The timer-relay station is electrically connected via high voltage wiring to a breaker panel, via high voltage wiring to each light source, and via low voltage wiring to each switch set. The timer-relay station is adapted to transform high voltage input to low voltage and to illuminate each light source in response to electrical signals received from the switch set associated with the light source.