# KL-LED-STZ5 Ceiling-Mounted LED Shadowless Operating Lamp — Five-Petal Dome, 45-LED Computer-Programmed Optics, High Shadowless Rate
Quick answer: The Keling KL-LED-STZ5 is a ceiling-mounted five-petal-dome LED shadowless operating lamp with 45 LEDs per dome delivering 160,000 lux at 1 m, manufactured by Keling Medical (Keling Medical) for hospitals, clinics, and medical distributors. The KL-LED-STZ5 uses computer-programmed optical arrangement for a high shadowless rate and achieves a rated LED lifespan of 50,000 hours.
Quick Facts
- The Keling KL-LED-STZ5 delivers 160,000 lux illumination at 1 m in both single-dome and double-dome configurations (KL-LED·STZ5/STZ5: 160,000/160,000 lux).
- Each dome of the KL-LED-STZ5 contains 45 LEDs arranged using a computer-programmed optical layout for a high shadowless rate and natural, uniform illumination.
- The KL-LED-STZ5 includes an independently controlled minimally invasive illumination mode producing 10,000 lux at 1 m, compatible with all kinds of minimally invasive surgery.
- The KL-LED-STZ5 color rendering index is Ra≥85 (up to Ra=100), supporting accurate tissue and anatomical structure visualization during surgery.
- Keling Medical (Keling Medical) manufactures the KL-LED-STZ5 at an ISO 13485-certified facility with CE-marked product lines and a combined depth of illumination (L1+L2) of 150 cm.
- The KL-LED-STZ5 supports adjustable color temperature from 3,000 K to 6,700 K to reduce visual fatigue and help distinguish different tissue types under OR lighting.
Overview
The KL-LED-STZ5 is a ceiling-suspended, five-petal-dome LED shadowless operating lamp designed for high-demand surgical environments requiring superior shadowless performance and natural tissue color rendering. Manufactured by Keling Medical (Keling Medical), the KL-LED-STZ5 is available as a single-dome unit (KL-LED·STZ5) and as a double-dome ceiling configuration (KL-LED·STZ5/STZ5), both delivering 160,000 lux at 1 m. The five-petal (five-lobe) dome head houses 45 LEDs per dome whose positions are determined by a computer-programmed optical arrangement, producing light beams that are described as pure white and natural, penetrating tissues and revealing anatomical structures with minimal shadow.
The KL-LED-STZ5 light field diameter is adjustable between 10 cm and 28 cm at 1 m, and the combined L1+L2 depth of illumination reaches 150 cm, ensuring even the deepest surgical cavities receive uniform, shadow-free light. Keling Medical's high-thermal-conductivity heat dissipation technology limits the heat-to-light ratio to ≤3.2 mW/m²lx, protecting the operative field from excess radiant heat and extending LED service life to 50,000 hours. An optical PC lens with anti-glare treatment completes the optical system, preventing reflective glare from instruments and body fluids.
The KL-LED-STZ5 control panel provides adjustable color temperature across 3,000–6,700 K, allowing clinical teams to select the most appropriate OR light spectrum for each procedure type and to reduce whiteness-induced visual fatigue during long operations. An independently controlled minimally invasive (Endo) illumination circuit reduces output to 10,000 lux for laparoscopic and similar procedures. The KL-LED-STZ5 is designed for ceiling installation heights of 270–320 cm with a working distance of 70–140 cm, accommodating all standard OR configurations.
Key Features
- Five-Petal (Five-Lobe) Dome Design — The five-lobed shadowless head geometry positions LEDs to project light onto the surgical field from multiple angles, substantially eliminating surgeon and instrument shadows and providing rich, uniform illumination depth.
- 45 LEDs per Dome — Computer-Programmed Optical Arrangement — Keling Medical uses computer-programmed optical layout to position all 45 LED sources within the KL-LED-STZ5 dome for maximum shadowless rate; the resulting beam is pure white and natural, revealing tissues and anatomical structures clearly.
- 160,000 Lux at 1 m — The KL-LED-STZ5 achieves 160,000 lux in both single and double-dome configurations, with an adjustable light field diameter of 10–28 cm at 1 m and a depth of illumination (L1+L2) of 150 cm.
- Independently Controlled Minimally Invasive (Endo) Mode — A dedicated illumination circuit reduces the KL-LED-STZ5 output to 10,000 lux at 1 m for endoscopic and laparoscopic procedures, suitable for all kinds of minimally invasive surgery without affecting the main dome's ambient output settings.
- Adjustable Color Temperature (3,000 K–6,700 K) — The KL-LED-STZ5 allows surgeons and OR staff to choose the most appropriate color spectrum for each procedure: cooler temperatures enhance tissue contrast; warmer temperatures reduce white-induced visual fatigue during long operations.
- High Thermal Conductivity Heat Dissipation — Low Temperature Rise — Keling Medical's heat management technology maintains the KL-LED-STZ5 heat-to-light ratio at ≤3.2 mW/m²lx, keeping the surgical field cool and protecting the 45-LED array to achieve a 50,000-hour rated lifespan.
- Optical PC Lens — Anti-Glare — Precision polycarbonate optics shape and diffuse the beam, eliminating specular reflections from surgical instruments, implants, and body fluids to protect the surgical team's vision.
- True Color Reproduction (Ra≥85 to Ra=100) — The KL-LED-STZ5 high color rendering index enables reliable distinction between tissue types, supporting accurate diagnosis and tissue handling throughout the procedure.
- Rich and Uniform Depth Illumination — The KL-LED-STZ5's shadowless and depth illumination design ensures consistent light intensity throughout the surgical cavity, from superficial incision to deep anatomical planes.
- Single and Double-Dome Configurations — Available as KL-LED·STZ5 (one dome) or KL-LED·STZ5/STZ5 (two domes on a single ceiling suspension arm) for scalable coverage in any operating theatre.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | KL-LED·STZ5 / KL-LED·STZ5/STZ5 |
| Illumination at 1 m (lux) | 160,000 / 160,000 |
| Illumination at 1 m — Endo Mode (lux) | 10,000 |
| Light Field Diameter at 1 m (cm) | 10–28 |
| Light Field Diameter D10 (mm) | 180 ± 40 / 180 ± 40 |
| Light Field Diameter D50 (mm) | 110 ± 35 / 110 ± 35 |
| L1+L2 Depth of Illumination (cm) | 150 |
| Color Rendering Index (Ra) | 100 ≥ Ra ≥ 85 |
| Optional Color Temperature (K) | 6,700 ≥ Tc ≥ 3,000 |
| Number of LEDs per Dome | 45 |
| Average LED Lifespan (hours) | 50,000 |
| Heat-to-Light Ratio (mW/m²lx) | ≤3.2 |
| Input Power (VA) | 90 W / 90 W |
| Ceiling Height for Installation (cm) | 270–320 |
| Working Distance (cm) | 70–140 |
Specifications are subject to change; dimensional tolerances may apply. Contact Keling Medical for the latest datasheet.
Applications
The KL-LED-STZ5 ceiling-mounted LED surgical light is suited to operating theatres requiring a high shadowless rate, deep cavity illumination, and adjustable color rendering across a full range of surgical specialties. The five-petal dome design and computer-programmed optics make the KL-LED-STZ5 particularly effective for complex open procedures and hybrid OR environments.
Typical installation settings include:
- General and abdominal surgery operating rooms
- Laparoscopic, endoscopic, and robotic-assisted surgery suites
- Orthopedic, spinal, and trauma operating theatres
- Cardiovascular and thoracic surgery rooms
- Neurosurgery operating rooms requiring deep-cavity illumination
- Obstetrics and gynecology theatres
- ENT and maxillofacial surgery suites
- Day surgery centres and specialist ambulatory surgical facilities
- District and regional hospitals seeking a high-specification ceiling-mounted LED surgical light
