The Oriel 66477 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 1.5 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/1, UV fused silica asphere condenser for a collimated 1.3 inch (33 mm) output beam. The lens has a 0.11x multiplication factor and a 200 to 2500 nm transmittance range.