The 6' non-solar tower assembly is designed to allow for "hard-wired" installations where     A/C power is available nearby or in the event the tower is located under trees or areas that sun light may not be available. A specially designed lid or “Top Cap” bolts directly to the aluminum rods located inside the frame body and secures the enclosure together. Concealed inside the base of the tower housing, allows access for a ¾” flex tubing and cabling for power and/or circuit, see photos below: See additional photos at the bottom of this page, click on to view in detail: