This range of linear quartz heating elements was designed for applications requiring a fast thermal response and/or high power density with peak emission wavelengths in the shorter end of the medium wave range (~1.6-1.9µm). The standard quartz tungsten element is available in 3 sizes – models QTL, QTM and QTS. All heaters are fitted with the industry standard R7s type termination which, when used with a suitable R7s holder at both ends, is used to mount the heater and provide the electrical connection. Non-standard power outputs, voltage ratings and termination types available on request. Bespoke sizes are also available but a minimum order of 25 pieces applies.