Over 600 of each are available. ProSpeed 4-LITE DMX LED Dimmers. $120.00 each. The sell new for $250.00. Dimmers! HLG-240H-12MEAN WELL  $50.00 each. They sell for up to $120 each. Located in DT Toronto. Text Grant at 416 836-0710Some are mounted on boards, 4 power supplies 4 dimmers, and a surge suppressed power bar. $650.00 each board of 4.