PT TD11 high power tungsten-halogen lamp are complete light source assemblies with 150W tungsten-halogen lamps that emit in the 300 to 2600nm wavelength region. They have been designed to transfer the maximum possible illumination from a tungsten-halogen lamp to monochromators. The tungsten-halogen lamps of PT TD11 are near blackbody sources of light with fused silica envelopes around the lamp filaments.

The housing contains a 1" UV grade fused silica lens (f#/1.2) and UV protected Al coated mirror (f = 12.5mm) assembly selected for optimum coupling to the monochromator or the fiber, a regulated power supply and a cooling fan. The power supply provided with PT TD11 high power series is a DC voltage regulated power supply.