The Prior Scientific Lumen 200S is a powerful, cost effective alternative to standard 100 Watt mercury and halogen lamp houses. With a minimum exposure time of 20 milliseconds, the Lumen 200S is suitable for the most demanding imaging applications. A wide variety of control options are available for the Lumen 200S including RS232, USB, TTL and via the ProScan III shutter port. Designed to mount remotely via a two or three meter liquid light guide the Lumen 200S eliminates heat transfer to the microscope, minimizing thermal drift and aiding image stability in long term experiments