Description
3000W/4000W 4-in-1 Diode Laser Hair Removal Machine
The K21 is a professional multi-wavelength diode laser hair removal device designed for clinics, medical aesthetic centers, and beauty salons.
- 15.6-inch Android Touchscreen
- Advanced Compressor Cooling
- 755nm / 808nm / 940nm / 1064nm
Advanced 4-in-1 Diode Laser Platform
K21 combines multiple diode laser wavelengths with high-power output and an advanced cooling system, providing professional flexibility for different treatment requirements.
4 Core Advantages
4-in-1 Multi-Wavelength
808nm + 755nm + 940nm + 1064nm
3000W / 4000W High Power
Strong energy output from 1–200J
Rapid Compressor Cooling
HITACHI industrial compressor with rapid cooling performance
Smart & Professional Operation
15.6″ Android touchscreen with Wi-Fi & Bluetooth
Advanced Multi-Wavelength Diode Laser Technology
01. Selective Melanin Absorption
Diode laser energy penetrates the upper layers of the skin and is delivered toward the hair. Melanin within the hair absorbs the laser energy and converts it into controlled thermal energy.
02. Controlled Thermal Effect
The absorbed energy generates heat around the hair follicle, creating a targeted thermal effect designed to damage the follicle while minimizing unnecessary effects on surrounding tissue.
03. Multi-Wavelength Energy Delivery
K21 integrates 755nm, 808nm, 940nm and 1064nm wavelengths into one professional platform, providing multiple wavelength options for different treatment requirements.
04. Progressive Hair Reduction
Repeated laser treatments target the hair follicle during suitable growth stages. The cumulative treatment effect is designed to reduce hair regrowth and support long-term hair reduction.
K21 integrates an industrial-grade compressor as the core of its cooling system, providing powerful and consistent cooling capacity for intensive treatment workflows.
– Rapid Heat Dissipation
Quickly removes accumulated heat from the cooling circuit to maintain stable operating conditions.
– Stable Cooling Performance
Designed to deliver consistent cooling during extended treatment sessions, helping maintain reliable system performance.
– Continuous Professional Operation
The robust compressor-based cooling architecture supports long-duration operation and is engineered for the demands of busy professional clinics.
– Reliable Cooling Infrastructure
Combined with a high-flow water circulation system and professional pump, the cooling system helps maintain efficient thermal management throughout the device.
Professional Diode Laser Treatment Handpiece
01. USA Imported Diode Laser Bars
– Equipped with USA imported diode laser bar technology
– Designed for stable laser energy delivery
– Supports high-power professional treatment applications
02. Built-In Display for Easy Operation
– Treatment information can be viewed directly on the handpiece
– Energy and temperature values displayed on the handle screen
– Helps operators monitor treatment parameters more conveniently
03. Multiple Spot Size Options
– 16 × 16mm
– 20 × 20mm
– 24 × 24mm
– Nozzle tip — optional
Different spot configurations provide greater flexibility when treating different areas.
Flexible Professional Treatment Applications
Full-Body Hair Removal
The multiple-wavelength platform and different spot size options make K21 suitable for professional hair removal procedures across different body areas.
Precision & Large-Area Treatment
The combination of multiple spot sizes allows practitioners to select an appropriate treatment configuration according to the treatment area, supporting both larger treatment zones and more targeted areas.
Professional Clinic & Beauty Applications
With high-power output, rapid cooling, continuous operation capability and an intuitive Android interface, K21 is designed for medical aesthetic clinics, dermatology practices, beauty centers and professional salons.
K21 is suitable for:Medical spas,Beauty salons,Dermatology clinics,Aesthetic clinics,Laser hair removal centers,Professional distributors.
Hair Removal Treatment Areas
Face · Underarms · Arms · Legs · Back · Chest · Bikini Area
Why Choose KEYLASER for Diode Laser Equipment?
Core Advantages
19+ Years Manufacturing Experience as a professional Diode Laser Hair Removal Equipment Supplier
Factory Direct Supply
OEM / ODM Customization Available
Global Distributor Support
7×24-Hour Technical Support
Full Certifications: FDA 510(k), CE MDR, MDSAP, ISO 13485
| ICELEGEND 4 in 1 Diode Laser 808nm 755nm 1064nm 940nm Machine Product Specifications | |
| Light Source | Diode Laser |
| Wavelength |
808nm 940nm 808nm 755nm 1064nm |
| Operation Interface | 15.6 Inch Android System Color Screen |
| Spot Size |
16*16mm;20*20mm; 24*24mm Nozzle tip(Optional) |
| Energy | 1-200J |
| Laser Emitter | 3000W/4000W |
| Laser Bar Source | Coherent, single bar 200w |
| Repetition Rate | Up to 10HZ |
| Voltage | 110V/220V |
Q: What wavelengths does the K21 diode laser use?
A: K21 integrates four diode laser wavelengths: 755nm, 808nm, 940nm and 1064nm, providing multiple wavelength options within one professional platform.
Q:What power configurations are available?
A: The K21 is available in 3000W and 4000W configurations, with an energy range of 1–200J and repetition rates of up to 10Hz.
Q: How does the K21 cooling system work?
A: The system uses a professional industrial-grade compressor for rapid cooling. The handle temperature can operate between approximately -5°C and 5°C, while the water tank is maintained around 26°C.
Q: Can operators monitor treatment information directly from the handpiece?
A: Yes. The treatment handpiece features an integrated display that shows energy and temperature values, allowing convenient parameter monitoring during treatment.
Q: Is the K21 suitable for long-duration professional operation?
A: Yes. According to the K21 product specification material, the compressor cooling system supports up to 36 hours of continuous operation, making the platform suitable for demanding professional treatment environments.







