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Key Characteristics
- Wavelength: 365nm is in the UV-A band, known for stimulating strong fluorescence in many materials.
- Manufacturer: Often associated with Seoul Viosys (SVC), a prominent LED supplier.
- High Power: Designed for high current operation, providing high radiant flux (power output).
- Low Visible Light: Produces a dark blue-white light, making it better for fluorescence detection than 395nm LEDs, which have a noticeable purple hue.
- SMD Design: Uses Surface Mount Device (SMD) technology, often in packages like 3535, for efficient heat management.
Common Applications
- UV Curing: Quickly solidifying inks, adhesives, and resins in 3D printing and manufacturing.
- Fluorescence Detection: Exciting fluorescent materials for inspection (e.g., pet urine stains, minerals).
- Forensics & Security: Detecting fingerprints, counterfeit currency, and biological fluids.
- Medical/Dental: Curing dental materials or aiding in medical testing.
- Industrial Inspection: Oil leak detection, non-destructive testing (NDT).
Examples of Specific Models/Products
- SVC CUN66A1B / CUN6GB1A: Popular high-power 365nm UV LEDs.
- UV LED Strips/Bars: Flexible tapes for DIY or large-area applications.
- UV Flashlights: Compact, powerful tools for field use.
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SVC CUN6GF1A UV 365nm 5W High Radiant Flux 1300mW
Shenzhen Deshengxing Electronics Co., Ltd.
https://www.leduvcuring.com › svc-cun6gf1a-uv-365nm...
Shenzhen Deshengxing Electronics Co., Ltd.
https://www.leduvcuring.com › svc-cun6gf1a-uv-365nm...
The features of SVC CUN6GB1A UV 365nm LED are super high power output, designed for high current operation, low thermal resistance, SMT solderable, lead free ...Read more
5W Seoul Viosys UV 365nm CUN66A1G UV 3535 LED
Kaidomain.com
https://kaidomain.com › 5W-Seoul-Viosys-UV-365nm-Z...
Kaidomain.com
https://kaidomain.com › 5W-Seoul-Viosys-UV-365nm-Z...
High power UV LED series are designed for high current operation and high power output applications. It incorporates state of the art SMD design.Read more
$6.98
Seoul Viosys SVC UV LED 365nm High Power Medical ...
Alibaba.com
https://www.alibaba.com › ... › UV LED
Alibaba.com
https://www.alibaba.com › ... › UV LED
Seoul Viosys SVC UV LED 365nm High Power Medical Testing curing lamp offers 30000 hours lifespan, 20000 hours working time, and 43mW radiated power.
$24.90In stock
People also ask
Is 365 nm UV harmful to eyes?
Yes, 365 nm UV light can be harmful to eyes, especially with prolonged or intense exposure, potentially causing temporary issues like "photokeratitis" (sunburn of the eye) or long-term risks like cataracts, but short, accidental glances are less severe, often healing quickly; protection like UV-blocking glasses is essential for safe use, say experts on forums and scientific literature.
Why it's harmful:
- UVA Range:365nm falls into the UVA range (315-400nm), which penetrates deeper into the eye than UVB, damaging collagen and elastin.
- Cornea & Lens:It can damage the cornea (outer layer) and lens, potentially causing inflammation (photokeratitis) or long-term cataract formation.
- Fluorescence:It causes the lens and vitreous humor to fluoresce, adding to the risk with repeated exposure.
Risk Levels:
- Short exposure (a second): Usually not permanent, causing temporary irritation or "arc eye," which heals in days.
- Prolonged exposure (minutes/hours): Increases risk of significant eye strain, sunburn, and cataracts.
- Reflected Light: Even reflected light from surfaces can be harmful over time, requiring protection.
Safety Measures:
- Avoid Direct Shining: Never point 365nm UV directly into your eyes.
- Wear Protection: Use polycarbonate safety glasses or goggles that block UV light.
- Limit Time: Reduce exposure duration and take breaks from the light source.
In Summary: While less immediately dangerous than shorter UV wavelengths (UVB/UVC), 365nm UV requires respect; protect your eyes with proper eyewear to prevent immediate discomfort and long-term vision problems.
AI responses may include mistakes. Learn more
OK but really, how dangerous is a 365nm UV side-light? - Reddit
Dec 22, 2022 — Very short exposure isn't an issue, but prolonged exposure (a minute or more, depending on wavelength and power) will ...
Reddit ·
r/flashlight
Exposed myself to 365nm UV right out of the box! - LED Flashlights – General Info - BudgetLightForum.com
Jan 24, 2019
BudgetLightForum.com
I accidentally glanced directly at a 365nm black light for just a second. What are the odds that I permanently damaged my vision?
Dec 8, 2018
Quora
Will the light reflecting off illuminated pieces harm my eyes when using a ...
Jun 4, 2025 — Googling is not always accurate, but it is a better start than a Facebook group. Notice how your first 2 answers give y...
Facebook ·
Uranium Glass Addicts
Is 365nm UV safe for eyes? - Knowledge - BENWEI
Dec 1, 2023 — Ultraviolet (UV) light is a form of electromagnetic radiation that is widely used in medical, industrial, and scientifi...
Shenzhen Benwei Lighting Technology Co., Ltd
Ocular effects of ultraviolet radiation from 295 to 365 nm - PubMed
Abstract. A 5,000 watt Xe-Hg source and a double monochromator were used to produce 6.6 nm. full band-pass ultraviolet (UV) radiat...
National Institutes of Health (.gov)
Aren't 360 nm ultraviolet lamps unsafe and just branded safe by their ...
Oct 2, 2021 — * No, UV at 365nm does not cause cancer and is not really dangerous, but it can cause cataracts if you overdo it, sinc...
Quora
What are the risks of using UV flashlights for yooperlites ... - Facebook
Sep 28, 2018 — As many of us are going to the beaches at night to look for Yooperlites with a UV light. It is good to know the differ...
Facebook
Can UV Flashlights Hurt Your Eyes? A Comprehensive Guide - Tank007
Feb 19, 2025 — Use diffusers or filters: If your flashlight allows it, use a UV filter or diffuser to reduce the intensity of the lig...
Tank007
FAQ About 365nm UV Flashlights - Tank007 Store
Feb 23, 2025 — Protect Your Eyes: Avoid looking directly into the UV light for extended periods, as prolonged exposure can cause eye ...
Tank007 Store
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What is 365 nm UV light used for?
Key Applications:
- Forensics & Security:Detects bodily fluids, fingerprints (with powders), hidden security threads in money, invisible inks, and authenticates IDs/documents.
- Leak Detection:Reveals fluorescent dyes in HVAC systems, oils, and refrigerants, making leaks visible.
- Inspection & Cleaning:Verifies cleanliness after ultrasonic cleaning, checks for dust, hydrocarbons, and locates pet stains.
- Curing:Cures UV-reactive resins, adhesives, and coatings, providing a thorough cure for thick layers.
- Mineralogy & Art:Identifies fluorescing minerals (like uranium glass) and charges glow-in-the-dark items for art and special effects.
- Medical/Biological:Used with fluorescent dyes for DNA/protein analysis and identifying certain bacteria/fungi.
Why 365nm?
- It produces stronger, more intense fluorescence compared to longer wavelengths (like 395nm) because it's less visible to the human eye, making the glowing effect stand out better.
- It's considered a professional-grade wavelength for applications needing precise detection.
AI responses may include mistakes. Learn more
365nm UV Light: Deep Dive into Its Uses - Olight UK
Jun 10, 2023 — 365nm UV light is also used for gemstone grading and analysis. 5. 365nm can cure resins and harden plastics. To bring ...
Olight
What can 365nm UV lights be used for besides... - LED Flashlights – General Info - BudgetLightForum.com
Dec 15, 2022
BudgetLightForum.com
What the difference are in UV lights between the 365, 395, 405, etc? Suggestions
Sep 22, 2023
Reddit ·
r/flashlight
Applications of UV-A 356nm light / FIRSTELEMENTSSTORE.COM
Nov 3, 2022
Firstelementsstore
UVA Black Light: 365nm VS 395nm – SuperLightingLED Blog
Jul 11, 2023 — For fluorescent dyes and markers, banknotes and security markers, minerals and gemstones, white clothing and dental bl...
SuperLightingLED.com
UV Lights for Resin Curing: 365nm vs 395nm Which is Better?
Jan 13, 2025 — Conclusion. Both 365nm and 395nm UV lights have their place in resin curing, but the best choice depends on your speci...
Tank007
A Comparative Look at 365nm and 395nm Wavelengths UV Light
Oct 28, 2023 — Glow-in-the-Dark Art and Decor: Artists and creative enthusiasts often use 365nm UV lights to create captivating glow-
Pete's Luminous Creations
365nm UV Light - resiners
The 365nm UV light penetrates resin more deeply than 405nm, resulting in a more thorough cure throughout the entire piece. This wa...
resiners
Applications and Uses of 365nm UV Light - Knowledge - BENWEI
Apr 18, 2025 — 365nm UV light is essential in crime scene analysis and forensic labs because it reveals evidence invisible to the na...
Shenzhen Benwei Lighting Technology Co., Ltd
UV LED Flashlight 365nm
The TechnoGlow 365nm UV LED flashlight is a 3-watt flashlight with a wavelength of 365 nanometers. It's effective for: * Charging ...
Techno Glow
365 nm UV Lamps - Black Lights
365 nm is the standard UV light source for black light. Black lights and UV LEDs are made of aluminum alloy and use professional L...
Risk Reactor
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What glows under 365 nm UV light?
Manganese Glass (365nm)
Manganese can be found in nearly all colors of glass, especially amethyst and turquoise blue glass. Manganese fluoresces green under 365nm UV light, often being confused with Uranium.
Manganese can be found in nearly all colors of glass, especially amethyst and turquoise blue glass. Manganese fluoresces green under 365nm UV light, often being confused with Uranium.
About UV Glass - The Butterfly Babe
The Butterfly Babe
https://www.thebutterflybabe.com › about-uv-glass
The Butterfly Babe
https://www.thebutterflybabe.com › about-uv-glass
Is 365nm or 395nm better?
365nm (Blue-White Glow)
- Pros:Higher energy, better at exciting many fluorescent materials, stronger fluorescence, deeper penetration (great for thick resin/substances).
- Cons:More expensive, less visible purple glow (can be harder to see what's lit), may require more power.
- Best For:UV resin curing, PCB inspection, forensic/lab use, pet urine detection, counterfeit detection, uranium glass hunting.
395nm (Purple Glow)
- Pros:More visible purple light, good for atmosphere/visual effects, cheaper, wider coverage, better for general blacklight tasks.
- Cons:Lower energy, less effective at exciting some materials, weaker fluorescence for specific applications.
- Best For:Blacklight parties, stage lighting, general fluorescent art, finding some minerals (like some uranium glass).
How to Decide
- For Curing & Detection:Go with 365nm for professional results, especially with thick materials or for spotting subtle fluorescence.
- For Visual Effects:Choose 395nm if you want that classic purple blacklight look and budget is a concern.
- For Collectors:Consider a dual-wavelength light; 395nm is good for beginners (uranium glass), but 365nm reveals more (manganese glass, etc.).
AI responses may include mistakes. Learn more
Is 365nm or 395nm better for finding yooperlites? - Facebook
Jun 19, 2024 — Unless you want to look for cat urine in your carpet or flooring then go with the 365nm!
Facebook ·
Great Lakes Rocks & Minerals
New to collecting, is 365nm or 395nm better for hunting uranium/ ...
Jul 29, 2025 — To start, especially for uranium glass, I think you'll be happier with 395 nm, especially till you can tell the differ...
Reddit
UV Lights for Resin Curing: 365nm vs 395nm Which is Better? - Tank007
Jan 13, 2025 — Project Type: For professional applications or intricate designs, opt for a 365nm UV light. For general crafting or ho...
Tank007
Could someone kindly please explain the difference between 395 ...
Feb 5, 2025 — * Andy Robbins. Deanna Marie both. 10 mos. * Bob Mallory. Andy Robbins kind of like a light bulb, Daylight or warm. 10...
Facebook
Difference Between 365nm and 395nm UV Light - Knowledge
Apr 18, 2025 — While 365nm is better for scientific and forensic applications due to its superior fluorescence excitation, 395nm is m...
Shenzhen Benwei Lighting Technology Co., Ltd
What is the difference between 365nm and 395nm UV LED? - UVET
Jun 15, 2025 — The 365 nm UV LEDs produce stronger emissions of UV-A light due to their higher photon energy (3.40 eV). This results ...
UVET
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365 nm UV LED Application Set- Medium Power LED, Heat ...
Boston Electronics
https://shop.boselec.com › Products
Boston Electronics
https://shop.boselec.com › Products
Plug-and-Play UV LED Application Set - Includes LED (chip-on-board - COB), matched heat sink with thermal interface pads and driver kit including power supply.Read more
$57.63In stock30-day returns
SVC CUN66A1G 365nm UV LED High Power 5W ...
AliExpress
https://www.aliexpress.com › item
AliExpress
https://www.aliexpress.com › item
Imported CUN66A1G 365nm UV LEDs High efficiency 5W UV Lights is for paper currency fluorescent detection and jewelry fluorescent detection.Read more
The LED Panel with UV 365nm Light, 1X1Ft/50W & Build- ...
Amazon.com
https://www.amazon.com › ...
Amazon.com
https://www.amazon.com › ...
Most Powerful UV Grow Light panel with big coverage and enough irradiant · Low Profile design support use with different way to Usage. · Build In Timer support 0- ...Read more
365nm UV LED
Shenzhen Deshengxing Electronics Co., Ltd.
http://www.leduvcuring.com › 365nm-UV-LED_c19
Shenzhen Deshengxing Electronics Co., Ltd.
http://www.leduvcuring.com › 365nm-UV-LED_c19
High Power 365nm UV LED Light Beads is used for UV curing, fluorescent spectroscopy, sensors and monitors, phototherapy, printing, coating, etc..Read more
Recommendation between these 365nm UV flashlights?
BudgetLightForum.com
https://budgetlightforum.com › ... › 18650 Flashlights
BudgetLightForum.com
https://budgetlightforum.com › ... › 18650 Flashlights
Sep 13, 2019 — I'm considering between these 3 365nm uv flashlights: Has anyone gotten and have experience with the Alonefire SV003 UV flashlight in particular?Read more
uVision™ Blacklight Lamp Kit
Spectro-UV
https://www.spectro-uv.com › products › uv-365zhc-uv...
Spectro-UV
https://www.spectro-uv.com › products › uv-365zhc-uv...
Lightweight, IP 65 Rated 365nm, UV-365ZEH UV-A inspection lamps can be used in nondestructive testing (NDT), nondestructive evaluation (NDE), forensics, ...
$2,100.00In stockFree delivery30-day returns
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