- Simple Set Timer Digital - BIG 12-volt Automotive Blower Motor - Steel Control box with timer holder - Steel mounting plate & conversion funnel - Heavy duty 5? steel swing door slinger - 12v 7ah Battery Sold Separately - 12v Box Mount Solar Panel Sold Separately - 12v Drum Mount Solar Panel Sold Separately - Feed flow and distance control - 2 Year Warranty - Wingbolts are #6-20 mm - Converts BB gravity feeders into automatic corn feeders - Converts BB gravity lower units and drop tubes into auto feeders