Acculab Model SSA – 51. A modem compact light weight and sturdy model with clear aperature 240 x 240mm. Provided with two 24 volt 250 watt halogen lamp. Twin arrangement of bulb allows quick changeover to second bulb in case of bulb failure without any interruption in presentation. Heavy transformer, focusing by rack and pinion, cooling fan, folding projection arm, rotating projection head 360° high class optics superior fresnel lens, efficient light intensity dim/bright switch, packed in thermocole case with card box.