uv led diode 365nm Seoul Viosys CUN66B1G
Product Details Description
The Seoul Viosys CUN66B1G is a high power uv led diode developed for professional 365nm UV-A applications that require compact size, strong radiant output, and controlled beam direction. With a 365nm wavelength, 2000mW radiant power, 3.7V voltage, 1000mA current, and 65° view angle, it is a strong choice for manufacturers building UV curing tools, UV flashlights, inspection systems, printing equipment, and customized UV LED modules.
This uv led diode belongs to the Seoul Viosys nZ5 near-UV LED series. It is designed for high current operation, narrow-angle output, and high power performance. The 3.5 x 3.5 x 2.8mm SMD structure helps engineers create compact UV light engines without using bulky lamp systems.
The 365nm wavelength is widely used where strong fluorescence response and less visible purple interference are important. This uv led diode can be used for UV curing, printing, coating, adhesive curing, counterfeit detection, security inspection, UV torch design, fluorescence photography, dental curing, crime inspection, and oil leak detection. Since it is a UVA / near-UV source, it should not be promoted as a UVC disinfection or germicidal LED.
The 65° viewing angle provides a more concentrated UV pattern than wide-angle dome LEDs. This is useful when UV energy needs to be delivered to a defined target area, such as a curing spot, inspection zone, adhesive line, coating surface, fluorescent material, or leak detection point. Final performance depends on driver current, lens design, reflector design, working distance, heat dissipation, and target material response.
For OEM and ODM projects, the CUN66B1G can be assembled on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards. Aluminum PCB is suitable for many cost-effective UV module structures, while copper PCB can be selected when stronger heat transfer is required. The LED can be supplied as a component or assembled into UV flashlight modules, curing modules, inspection lamps, and customized UV LED products.
Thermal design is important for this high-current UV LED diode. To support stable operation, use a suitable constant-current driver, proper soldering process, appropriate PCB material, and enough heat dissipation. Engineers should verify board temperature, radiant output, optical performance, and service stability inside the final product before mass production.
This product is a UV LED component, not a complete finished lamp. A complete device should include a driver circuit, PCB board, heat sink, housing, lens or reflector, wiring, switch, and safety structure. For curing, dental, inspection, security, and industrial use, shielding and protective eyewear are recommended.
Do not look directly at the operating LED or expose skin and eyes to unnecessary UV radiation. Follow safe handling procedures during testing, assembly, and operation.
Specifications
Brand: Seoul Viosys
Model NO.: CUN66B1G
Wavelength: 365nm
Size: 3.5 x 3.5 x 2.8mm
Voltage: 3.7V
Current: 1000mA
Radiant Power: 2000mW
View Angle: 65°
PCB Options: Can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB board
Service: OEM ODM service for UV flashlight or other UV LED module
Features and Benefits
High power output
Designed for high current operation
Narrow viewing angle
SMT type
Lead free product
RoHS compliant
Key Applications
UV Curing
Printing
Coating
Adhesive
Counterfeit Detection / Security
UV Torch
Fluorescence Photography
Dental Curing
Crime Inspection
Oil Leak Detection
FAQ
What is this uv led diode used for?
This uv led diode is used for UV curing, printing, coating, adhesive curing, counterfeit detection, security inspection, UV torch design, fluorescence photography, dental curing, crime inspection, and oil leak detection.
Is CUN66B1G a Seoul Viosys UV LED?
Yes. CUN66B1G is a Seoul Viosys high power 365nm UV-A LED in a compact SMD package.
What wavelength does this LED use?
The CUN66B1G uses a 365nm wavelength, which belongs to the UVA / near-UV range.
What is the radiant power?
The radiant power is 2000mW at 1000mA.
What is the forward voltage?
The forward voltage is 3.7V.
What is the view angle?
The view angle is 65°, which provides a directed UV beam for curing, inspection, UV torch, and detection applications.
Can this LED be mounted on a PCB board?
Yes. It can be welded on 12mm, 14mm, 16mm, 20mm, or other aluminum or copper PCB boards according to the project design.
Do you provide OEM or ODM UV LED modules?
Yes. OEM and ODM service is available for UV flashlight modules, UV curing modules, inspection lights, and customized UV LED assemblies.
Is this LED suitable for UV curing?
Yes. This 365nm uv led diode is suitable for UV curing, adhesive curing, printing, coating, dental curing, and related UV-A applications when the material responds to 365nm.
Can it be used for UV flashlights?
Yes. Its 365nm wavelength, 2000mW radiant power, and 65° beam angle make it suitable for high-output UV flashlight and UV torch designs.
Is this LED suitable for sterilization?
No. This is a 365nm UVA LED, not a UVC sterilization LED. It should not be used or promoted for disinfection or germicidal applications.
Is it safe to look directly at the LED?
No. Do not look directly at the operating UV LED. Use protective eyewear, shielding, and safe working procedures during testing, assembly, and operation.
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