The backlight module includes a holder having a holder sidewall, a light source disposed on the holder, a light guide plate, and a frame. The system can optionally provide an ionization device, which injects a stream of silver, copper and zinc ions into the water to kill bacteria, mold and algae, and solid-state lighting. The upper panels of the pair of end walls are foldable downwardly toward the bottom, and the upper panels of the pair of side walls are foldable downwardly atop the upper panels of the pair of end walls to thereby compactly configure the container for shipping.