Replacement lamp offers quality design and construction for long life and accurate color. Lamp features 360 watts and accepts up to 82 volts. 99 percent pure quartz glass delivers the brightest light. Lamp is designed for use in Apollo 15404, AI-1004, AI-1005, AI-1009, AI-1010, AI-1012, 3000, 3002; Horizon 15000 Series, Horizon 2 (16000, 16002), Horizon Ultra, Toplite, Ventura 4000, Dukane: 28A611, 28A622A, 28A632A; and 3M 4405.