The KL-LED·STZ5/STZ5 suits obstetric theatres, day-surgery units, orthopaedic and hand surgery lists, and general theatres where many cases are done under regional or local anaesthesia. Its case is patient experience and dignity. A surgical light is designed for the surgeon, and for an awake patient it is also a bright, warm presence directly overhead.
Several listed figures let a team soften that. Endo mode at 10,000 lux is there for laparoscopic work, and it also serves the quiet parts of an open case, such as positioning, skin preparation and waiting for a block to take. Colour temperature from 3000 to 6700 K lets staff choose a warm tone when cool white is not needed for tissue contrast. A working distance of 70 to 140 cm and two heads on separate arms give room to light the wound from the sides and keep both beams off the patient’s face.
Heat is part of the same care. From Keling’s heat-to-light ratio, one head at full output delivers up to about 512 W/m², and two overlapped deliver up to about 1,024 W/m², which dries exposed tissue and warms skin over a long case. Telling a patient that the lights will be bright and warm, and offering eye protection or a screen, costs nothing. The full 160,000 lux stays available for the moments that need it. IEC 60601-2-41 expects light back within 5 seconds of a supply failure, so backup supply needs settling at commissioning.
Maternity and theatre leads, NHS procurement routes and public tender boards abroad will want the device class, the IEC 60601-2-41 test report and a declaration of conformity on file. The manufacturer issues the conformity documentation these procurement routes require, and the enquiry team shares it.