In April 2008 from LDDE the first Austrian LED color therapy-lighting system in the operating room of the heart catheter station of the hospital Schwazach went into operation. In close cooperation with the director of the medical-devices department, Mr. Franz Jud and the director of the heart catheter center, Mr. OA Dr. Hubert Wallner, a special LED system was realized in the main surgery room. The target of the installation is to provide color-therapy in support during the intrusive phase of surgery. When the LED lighting system was selected, many different areas of the operating rooms were considered. In this manner a customer-specific, linear Micro RGB SMD lighting system from LDDE is built directly into the available OP-ceiling rail system of the analysis equipment (Angiography system). Over the operation table there are also 4 linear-arranged RGB Downlights with an integrated color mixing system. For an added space ambience the High Power RGB System lightens the 3 lead jalousies found in the room. The control of the complete system is realized using a server system from e:cue Lighting Control. This is set from a central server (media engine 2 Lighting) and a tablet PC. Thus a selection of individual lighting moods via either the monitor room or direct in the operation room is functional. To keep the use of the control of the system at its simplest, at both service points a topographic user interface was implemented.