# KL-LED-MSTZ4 Mobile Four-Petal LED Light

URL: https://www.keling-surgicallight.com/products/kl-led-mstz4-mobile-led-surgical-light/
Category: Mobile LED Surgical Lights
Manufacturer: Keling Medical (Jiangsu Keling Medical Appliances Co., Ltd.)
Quote: https://www.keling-surgicallight.com/contact/?models=kl-led-mstz4


> **Quick answer:** The Keling KL-LED-MSTZ4 is a mobile floor-standing four-petal-dome LED shadowless operating lamp delivering 160,000 lux at 1 m, with 39 imported LED bulbs rated for 50,000 hours, manufactured by Keling Medical (Jiangsu Keling Medical Appliances Co., Ltd.) for hospitals, clinics and medical distributors worldwide. It carries a CE-marked design with adjustable color temperature (3,000–6,700 K) and a dedicated endoscopy (Endo) mode at 10,000 lux.

## Quick Facts
- The Keling KL-LED-MSTZ4 produces 160,000 lux of illumination at 1 m working distance under standard mode.
- Keling Medical equips the KL-LED-MSTZ4 with 39 imported LED bulbs rated for an average service life of 50,000 hours.
- The KL-LED-MSTZ4 features a dedicated endoscopy (Endo) mode that reduces output to 10,000 lux at 1 m to prevent over-illumination during minimally invasive procedures.
- Color temperature on the KL-LED-MSTZ4 is continuously adjustable from 3,000 K to 6,700 K to match surgical tissue differentiation requirements.
- The KL-LED-MSTZ4 heat-to-light ratio is ≤3.2 mW/m²lx, limiting radiant heat transfer to the surgical field.
- Keling Medical's KL-LED-MSTZ4 runs on a universal 100–240 V / 50–60 Hz supply and consumes a maximum of 120 VA.

## Overview

The KL-LED-MSTZ4 is Keling Medical's mobile four-petal-dome LED surgical light, designed for operating theatres, procedure rooms and facilities that require a repositionable shadowless lamp without ceiling infrastructure. The four-petal (quad-lobe) dome geometry creates a wide, evenly blended shadow-free field across a diameter of 10–28 cm at 1 m, while the titanium alloy balance arm with imported spring suspension holds the lamp head precisely at any position within a 70–140 cm working distance range without drift.

The lamp's 39 imported LEDs emit a cold light spectrum with a color rendering index of Ra ≥ 85 (Ra up to 100), giving surgeons accurate tissue color discrimination. Digital stepless brightness regulation and continuously adjustable color temperature (3,000–6,700 K) allow the operating team to configure the light field to procedure and preference without tool changes. A nano-coated heat sink and ultra-thin optical lenses maintain a heat-to-light ratio of ≤3.2 mW/m²lx, protecting tissue from radiant heat.

Designed for practical clinical environments, the KL-LED-MSTZ4 is built on a mobile floor stand with castors for room-to-room deployment. The removable handle case is autoclave-compatible and simplifies infection control. Two model variants are available—KL-LED·MSTZ4 (single head) and KL-LED·MSTZ4D (dual head)—allowing procurement teams to select the configuration appropriate to their case mix. The unit operates on a standard 100–240 V power supply, making it compatible with electrical infrastructure in most countries.

## Key Features

- **Four-Petal Dome Design** — Quad-lobe shadowless head geometry distributes light from multiple angles to eliminate surgical shadow across the entire operative field.
- **160,000 Lux Peak Illumination** — Delivers 160,000 lux at 1 m working distance for demanding open surgical procedures requiring high-intensity illumination.
- **Endoscopy (Endo) Mode** — Dedicated low-brightness mode reduces output to 10,000 lux at 1 m, preventing ambient light interference during minimally invasive and laparoscopic procedures.
- **39 Imported LED Cold Light Source** — Ultra-thin optical lenses maximize luminous efficiency while the cold-light spectrum eliminates the infrared heat load of halogen alternatives.
- **Adjustable Color Temperature (3,000–6,700 K)** — Stepless color temperature adjustment supports warm-to-daylight spectrum selection for tissue contrast and surgeon comfort.
- **Digital Stepless Brightness Control** — Fully continuous, flicker-free brightness adjustment via digital control without perceptible steps.
- **Minimally Invasive and R9 Function** — Dedicated modes support minimally invasive surgery; R9 value optimization enhances deep-red color rendering for accurate blood and tissue discrimination.
- **Titanium Alloy Balance Arm with Imported Spring** — Weld-free construction ensures each joint holds at exactly 90° without creep or positional drift during long procedures.
- **Nano-Coated Heat Sink** — Nano surface treatment increases effective heat dissipation area, keeping LED junction temperatures low and extending bulb life.
- **Removable Handle Case** — Detachable sterile handle casing allows quick removal for autoclaving or chemical disinfection between procedures.
- **Mobile Floor Stand with Castors** — Self-contained mobile base enables deployment in any room without ceiling mounting; compatible with facilities where ceiling height is outside the 270–320 cm installation range.
- **Universal Power Supply** — 100–240 V / 50–60 Hz input accepts power from any standard medical-grade outlet worldwide.

## Technical Specifications

| Parameter | Value |
|---|---|
| Model | KL-LED·MSTZ4 |
| Illumination at 1 m (standard mode) | 160,000 lux |
| Illumination at 1 m (Endo mode) | 10,000 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 range | 6,700 ≥ Tc ≥ 3,000 K |
| Number of LED bulbs | 39 |
| 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 | 120 VA |
| Ceiling height for installation | 270–320 cm |
| Available variants | KL-LED·MSTZ4 / KL-LED·MSTZ4D |

*Specifications are subject to change; dimensional tolerances may apply. Contact Keling Medical for the latest datasheet.*

## Applications

The KL-LED-MSTZ4 mobile surgical light is suited to facilities that require flexible high-intensity illumination without fixed ceiling infrastructure. Its endoscopy mode and R9 optimization extend its utility across a broad range of procedure types.

Typical deployment settings include:

- General and abdominal surgery operating theatres
- Minimally invasive and laparoscopic surgery suites
- Orthopedic and trauma operating rooms
- Gynecology and urology procedure rooms
- Outpatient surgery centers and ambulatory care facilities
- Emergency and trauma departments requiring mobile supplemental lighting
- Teaching hospitals where lamp repositioning between demonstration zones is required
- Medical facilities undergoing renovation where ceiling mounts are temporarily unavailable

## Frequently Asked Questions

### What is the KL-LED-MSTZ4 used for?

The Keling KL-LED-MSTZ4 is a mobile LED shadowless operating lamp used as the primary light source in surgical procedures. It provides 160,000 lux of shadow-free illumination at 1 m and includes an endoscopy mode (10,000 lux) for minimally invasive surgery, making it suitable for general surgery, laparoscopy, orthopedics, and other operative specialties in hospitals and outpatient facilities.

### How does the KL-LED-MSTZ4 endoscopy mode work?

The KL-LED-MSTZ4 endoscopy (Endo) mode reduces the lamp's output to 10,000 lux at 1 m. During laparoscopic or minimally invasive procedures, strong ambient operating light can wash out the endoscope camera image; activating Endo mode dims the room light to a level that preserves the endoscopic view while still providing sufficient ambient illumination for the surgical team.

### What is the difference between the KL-LED-MSTZ4 and the KL-LED-MSTZ4D?

The KL-LED-MSTZ4 is a single-dome configuration and the KL-LED-MSTZ4D is a dual-dome configuration on the same mobile floor-stand platform. The dual-dome variant provides additional light head coverage, which is useful for complex or deep-cavity procedures requiring illumination from multiple angles. Both share the same core specification including 160,000 lux output, 39 LEDs, and adjustable color temperature.

### Can hospitals and distributors purchase the KL-LED-MSTZ4 in bulk or under OEM terms?

Yes. Keling Medical (Jiangsu Keling Medical Appliances Co., Ltd.) supplies the KL-LED-MSTZ4 to hospitals, procurement agencies and medical equipment distributors on a wholesale basis. OEM and private-label arrangements are available. For volume pricing, lead times and export documentation contact Keling Medical directly via https://www.keling-surgicallight.com.

## About Keling Medical

Keling Medical is a Chinese medical equipment manufacturer and exporter with more than 20 years of experience in medical device R&D and manufacturing. The group operates through Jiangsu Keling Medical Appliances Co., Ltd. (registered in 1998) and Shanghai Keling International Trading Co., Ltd. (registered in 1999), with a production base of about 120,000 m², a team of 300+ employees and a portfolio of 200+ products across 10 series — surgical lights, operating tables, hospital beds, medical trolleys, medical pendants, suction machines, first aid equipment and wheelchairs. Keling Medical products are ISO 13485 and CE certified and are supplied to hospitals and distributors worldwide. Official website: https://www.keling-surgicallight.com

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