901581-1373 The 111843 is a high quality twin tube IR lamp. It features high output and long service life. Our lamps are used in numerous heating and drying applications. We manufacture them with gold and aluminum ceramic reflectors in 33x15mm and 23x11 cross sections. The 111843 is 1200 mm long, is operated on 400V and delivers 5400W of power. The factory warranty is 3000 hours.