# KL-LED-MSZ4 Mobile LED Surgical Light — 40,000–120,000 Lux Four-Petal Dome Operating Lamp
Quick answer: The Keling KL-LED-MSZ4 is a mobile floor-standing four-petal-dome LED shadowless operating lamp with variable illumination of 40,000–120,000 lux at 1 m, 32 imported LED bulbs rated for 50,000 hours, and a fixed color temperature of 4,500 ± 500 K, manufactured by Keling Medical (Keling Medical) for hospitals, clinics and medical distributors. It is an entry-to-mid-range mobile surgical light suited to general and outpatient surgery settings where a fixed neutral-white color temperature is sufficient.
Quick Facts
- The Keling KL-LED-MSZ4 delivers variable illumination of 40,000–120,000 lux at 1 m, adjustable via digital stepless brightness control.
- Keling Medical equips the KL-LED-MSZ4 with 32 imported LED bulbs rated for an average service life of 50,000 hours.
- The KL-LED-MSZ4 operates at a fixed neutral-white color temperature of 4,500 ± 500 K, standardizing the light spectrum without requiring on-the-fly color temperature adjustment.
- The KL-LED-MSZ4 four-petal (quad-lobe) dome head distributes light across a field diameter of 10–28 cm at 1 m to eliminate surgical shadow.
- The KL-LED-MSZ4 heat-to-light ratio is ≤3.2 mW/m²lx, keeping radiant heat delivery to the surgical field at a clinically safe level.
- The KL-LED-MSZ4 consumes a maximum of 80 W and operates on a universal 100–240 V / 50–60 Hz power supply.
Overview
The KL-LED-MSZ4 is Keling Medical's entry-to-mid-range mobile four-petal-dome LED operating lamp, designed for hospitals and outpatient facilities that require a high-quality shadowless light on a mobile platform with straightforward operation. Unlike the MSTZ4 and MSTZ5 models, the KL-LED-MSZ4 does not include an endoscopy mode or a wide-range adjustable color temperature; instead it operates at a standardized 4,500 ± 500 K neutral white, which suits the majority of general, minor and outpatient surgical procedures without requiring staff to manage color temperature settings between cases.
With 32 imported LEDs and a four-petal dome, the KL-LED-MSZ4 delivers between 40,000 and 120,000 lux at 1 m via digital stepless brightness control. The color rendering index of Ra ≥ 85 provides accurate tissue color reproduction across the full brightness range. The nano-coated heat sink maintains a heat-to-light ratio of ≤3.2 mW/m²lx, and the imported balance arm offers flexible vertical adjustment with reliable position-hold, making it practical for varied procedure types and surgical team heights.
At 80 W maximum power consumption, the KL-LED-MSZ4 is the lowest-power model in the MSTZ/MSZ mobile range, reducing operating costs in high-throughput outpatient or day-surgery environments. The removable handle sheath simplifies infection control between cases. Two procurement configurations are available: KL-LED·MSZ4 (single head) and KL-LED·MSZ4D (dual head) on the same mobile floor-stand platform.
Key Features
- Four-Petal Dome Design — Quad-lobe shadowless head distributes light from four angles onto the operative field to eliminate surgical shadow across the diameter.
- Variable 40,000–120,000 Lux Output — Wide illumination range covers low-intensity minor procedures through high-intensity general surgery requirements on a single unit.
- 32 Imported LED Cold Light Source — Ultra-thin optical lenses maximize luminous efficiency; cold-light spectrum eliminates infrared heat load compared to halogen sources.
- Digital Stepless Brightness Control — Smooth, continuous, flicker-free brightness adjustment without perceptible steps from minimum to maximum output.
- Fixed Color Temperature 4,500 ± 500 K — Standardized neutral-white color temperature simplifies multi-user and multi-shift operation without per-case reconfiguration.
- Ra ≥ 85 Color Rendering — High color rendering index ensures accurate tissue, blood and instrument color discrimination across the full brightness range.
- Nano-Coated Heat Sink — Nano surface treatment maximizes heat dissipation efficiency, maintaining low LED junction temperatures and supporting 50,000-hour rated bulb life.
- Imported Balance Arm — Flexible up-and-down adjustment with position-hold keeps the lamp head stationary during extended procedures.
- Removable Handle Sheath — Detachable sterile handle sheath is easy to remove for autoclaving or chemical disinfection between cases.
- Mobile Floor Stand with Castors — Self-contained mobile base enables room-to-room repositioning without ceiling mounting infrastructure.
- Universal Power Supply — 100–240 V / 50–60 Hz input accepts power from any standard medical-grade outlet worldwide.
- 80 W Maximum Power Consumption — Low power draw reduces operating costs relative to higher-specification models in high-throughput environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | KL-LED·MSZ4 |
| Illumination at 1 m | 40,000–120,000 lux |
| Light field diameter at 1 m | 10–28 cm |
| Light field diameter D10 | 180 ± 40 mm |
| Light field diameter D50 | 110 ± 35 mm |
| Color rendering index (Ra) | 100 ≥ Ra ≥ 85 |
| Color temperature | 4,500 ± 500 K |
| Number of LED bulbs | 32 |
| Average bulb life | 50,000 hours |
| Heat-to-light ratio | ≤ 3.2 mW/m²lx |
| Working distance | 70–140 cm |
| Power supply | 100–240 V, 50/60 Hz |
| Max. power consumption | 80 W |
| Ceiling height for installation | 270–320 cm |
| Available variants | KL-LED·MSZ4 / KL-LED·MSZ4D |
Specifications are subject to change; dimensional tolerances may apply. Contact Keling Medical for the latest datasheet.
Applications
The KL-LED-MSZ4 mobile surgical light is suited to facilities requiring a reliable, efficient, repositionable operating lamp for general and minor surgery without the complexity of multi-mode or wide-range color temperature adjustment. Its variable brightness range and mobile platform make it practical across a broad range of facility types.
Typical deployment settings include:
- General surgery and minor procedure operating theatres
- Outpatient and day surgery centers
- Gynecology and obstetrics procedure rooms
- Dental surgery and oral and maxillofacial operating rooms
- Orthopedic and trauma procedure suites
- Emergency departments requiring mobile supplemental surgical lighting
- District hospitals and primary care surgical facilities with straightforward case mixes
- Medical equipment rental and mobile surgical unit operators









