The KL12L is a ceiling-mounted surgical light for major theatres in tertiary hospitals, teaching centres and high-volume surgical units. Its users are consultant surgeons and their teams, trainees, scrub nurses, anaesthetists, and perfusionists, often with several working around the table at once.
Hepatobiliary, pancreatic and upper gastrointestinal surgery are typical of its work. These operations go deep into the abdomen, last for hours and need the surgeon, assistant and trainee to share the field. With twelve sources converging from above, the light reaches the bottom of the wound while three or four people lean over it.
Vascular and cardiothoracic theatres use it for aortic surgery, bypass grafting and lung resection, where colour rendering up to Ra 100 helps the team read the colour of vessels, grafts and perfused tissue. Spinal and major orthopaedic teams use it for fusions, revision joint replacement and pelvic fracture fixation, and plastic surgeons use it for free-flap reconstruction that runs late into the day.
Teaching hospitals value a light that keeps the field visible to the operating surgeon while supervisors and trainees stand close enough to see and assist. Major trauma centres use it for damage-control laparotomies and complex limb salvage, where speed and visibility both count.
The controlled radiant output, under 6 mW/m² per lux and at most 600 W/m² in total, keeps exposed tissue moist through these long procedures, and warming at the patient’s head stays under 2 °C. Ceiling mounting at 280 to 320 cm keeps the floor clear for perfusion, anaesthetic and imaging equipment, and upkeep centres on the 24 V bulbs in its twelve chambers.