UV Lamp
YUSHI Instruments:Leading Innovation in NDT Instruments
Yushi Instruments is a high-tech R&D-centered enterprise dedicated to providing high-quality ultrasonic testing (UT) equipment to the world. The company was founded in 1985 (formerly known as Shenyang Flaw Detection Machine Factory) and officially established in 2011. After more than a decade of dedicated innovation, we have grown to become a leader in China's non-destructive testing (NDT) industry. Our award-winning, multi-patented products such as the 2024 PM5 Gen2 and 2025 PM5 Gen3 Ultrasonic Thickness Gauge have received national patents and international certifications, fully reflecting our commitment to excellence.
YUSHI now has developed 8 categories of NDT products:
| Ultrasonic Thickness Gauge | Ultrasonic Flaw Detector |
| Ultrasonic Pulse Generator and Receiver | Coating Thickness Gauge |
| LEEB Hardness Tester | Industrial LED Film Viewer |
| Black and White Densitometer | UV NDT Lamp |
Why Choose YUSHI?
We offer a variety of precise testing instruments
Keep Technical Innovation
Rich experience of R&D and strong abilities drive the development of ultrasonic thickness solutions like the PM5 Gen2 and PM5 Gen3.
Customer's Requirement Oriented
We listen the real requirements from our all customers, from end users to distributors,treating every need with equal importance.
Customized Solution
We offer customized instruments and accessories based on our clients' specific needs.
Throughtful Service
Our commitment extends far beyond delivery, encompassing vital after-sales services including maintenance, calibration, and software updates.
VM Series NDT UV Lamps Overview
YUSHI Instruments' VM series ultraviolet detection lamp is an advanced ultraviolet lighting device designed specifically for industrial non-destructive testing (NDT). This product line includes two main series: VM10 series (Portable UV Lamp) and VM100 series (Handheld UV Lamp). These products are widely used in fluorescent penetrant testing (FPI), fluorescent magnetic particle testing (MT), leak detection, and other professional fluorescent testing applications. They comply with the Chinese national standard "Non-destructive Testing of Pressure Equipment" (NB/T 47013-2015), and the VM100 series also has IP66 protection level certification, making it suitable for various demanding industrial environments.
Model Showcase & Main Parameters
VM10
- Normal Steady-State UV-A Intensity at 38cm(15in): ≥10000 u W/cm²
- UV-A Coverage Area at 38cm (15 in) ,at minimum 1200uw /cm2: φ63mm
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Visible Light Measurement : 2.91lux
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Number of LEDs: 1 pc
- Battery Capacity: 3.7V ≥ 2600mAh
- Run Time: 4 hours
VM30
- Normal Steady-State UV-A Intensity at 38cm(15in): ≥13000 u W/cm²
- UV-A Coverage Area at 38cm (15 in) ,at minimum 1200uw /cm2: φ55mm
- Visible Light Measurement : 3.40lux
- Number of LEDs: 1 pc
- Battery Capacity: 3.7V ≥ 2800mAh
- Run Time: 5 hours
VM50
- Normal Steady-State UV-A Intensity at 38cm(15in): H≥20000 u W/cm²,L≥8000 u W/cm²
- UV-A Coverage Area at 38cm (15 in) ,at minimum 1200uw /cm2: φ55mm
- Visible Light Measurement : 3.14lux
- Number of LEDs: 2 pcs
- Battery Capacity: 3.7V ≥ 3800mAh
- Run Time: L:18 hours; H:8 hours
VM70
- Normal Steady-State UV-A Intensity at 38cm(15in): ≥6000 u W/cm²
- UV-A Coverage Area at 38cm (15 in) ,at minimum 1200uw /cm2: φ180mm
- Visible Light Measurement : 2.21lux
- Number of LEDs: 3 pcs
- Battery Capacity: 3.7V ≥ 9000mAh
- Run Time: 4 hours
VM100
- Normal Steady-State UV-A Intensity at 38cm(15in): ≥16000 u W/cm²
- UV-A Coverage Area at 38cm (15 in) ,at minimum 1200uw /cm2: φ250mm
- Visible Light Measurement : 10.89lux
- Number of LEDs: 5 pcs
VM100D
- Normal Steady-State UV-A Intensity at 38cm(15in): ≥9000 u W/cm²
- UV-A Coverage Area at 38cm (15 in) ,at minimum 1200uw /cm2: φ200mm
- Visible Light Measurement : 9.21lux
- Number of LEDs: 4 pcs
- Battery Capacity:8pcs3.7V2600mAh
ICR18650 Li-ion battery
- Run Time: 7 hours
Technical Advantages of vM Series
High quality light source & pure spectrum
Adopt high strength 365nm UV-A LED beads from NICHIA in Japan, so that VM series UV Lamp provide outstanding performance without UV-B and UV-C components, achieving harmless testing for the operators.
high efficiency & low-temperature inspection
◆High-speed Start-up:YUSHI VM Series NDT UV Lamp achieves maximum lightness immediately when it is turned on.Thus can greatly increase the working efficiency.
◆Cold Light Sources:Without any heat generation and keep stable light output.
Strong Power Supply & Longer Battery Life
◆The VM10 series is equipped with rechargeable lithium-ion batteries (18650/26650) with a battery life of 4 to 18 hours (depending on the model).
◆VM100D supports dual power mode (AC and built-in battery), providing up to 7 hours of battery running time and allowing operation during charging.
Robust Design For Actual Use
◆Equipped with anti magnetic interface function, it can be used in high-intensity magnetic field.
◆The bottoms of the instruments have switch and jack socket, making the convenient practice and avoiding misoperation.
Wide Applications of VM Series
1. Professional Inspection Applications
2. Practical Extended Inspections
Oil stain and contamination detection.
Oil and gas pipeline and special gas detection.
Fluorescence reflection detection of special materials.
Criminal investigation and forensic examination.
Currency authentication and jewelry appraisal.
Fluorescence analysis in agriculture, food, and medical industries.
Frequently Asked Questions
Are your UV lamps compliant with international NDT standards？
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Yes. All YUSHI VM series ultraviolet lamps are designed and manufactured in accordance with the requirements of the national standard NB/T 47013-2015 (applicable to pressure equipment).
I need a lamp for long working time. What is the battery life, and how long does it take to charge?
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The battery life varies by model to meet different needs:
For the VM10 series flashlight, the running time ranges from 4 hours (VM10) to 18 hours at low settings (VM50).
The handheld VM100D can provide 7 hours of continuous operation time on a single charge.
Charging time is equally effective: most models can be fully charged within 4 to 7 hours.
Do your UV Lamps have bad effect on inspectors' health?
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Of course not. YUSHI VM series lamps use UV-A light beads without UV-B and UV-C components, which is harmless for human body.
Do you support OEM service?
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We support OEM service upon the MOQ requirements. Please contact us if you need more detailed information.
We're well-known as one of the leading uv lamp manufacturers and suppliers in China. Please feel free to buy high quality uv lamp for sale here from our factory. Contact us for more details.
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