The Oriel 66909 Research Arc Lamp Source is a fully featured, 50 to 200 W source of UV NIR, CW radiation. It's small, bright arcs make it ideal for illumination of small targets. This 3 Inch Series flanged system come complete with all the necessary components to begin work. It includes a lamp housing with a condenser and a built-in ignitor, an OPS-A150 or OPS-A500 power supply, your choice of 50 - 200 W Hg, Xe or Hg(Xe) arc lamp (specify when ordering), and all necessary cables and mounting hardware. It has a F/0.7, four element borosilicate fused silica Aspherab condenser for a collimated 2.7 inch (69 mm) output beam. The lens has a 0.2x multiplication factor and a 200 to 2500 nm transmittance range.