The standard 6' Solar Tower Assembly is our most popular model and provides a complete self contained stand-a-lone unit. Utilizing 20-watt or 40-watt solar panels, depending on the load draw or stacking of the beams, the Solar Tower Assembly protects and houses all the components inside the towers enclosure. Two Lexan™ (unbreakable) face shields mounted on both sides of the tower housing conceals the components and beams location.