Tubular double-ended quartz infrared lamps are higher-powered heat sources incorporating a tungsten filament within a quartz envelope. They are of the halogen type, which avoids blackening of the tube and consequently infrared depreciation throughout their whole lifetime. The benefits of these lamps for industrial purposes induce high efficiency, fast heat transfer, direct response to power control, compactness and light weight. Depending on their type, these lamps have a horizontal, universal burning position.
