The Best 400Nm Led of 2025 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 400Nm Led of 2025. Check our ranking below.

2,857 (random) Reviews Scanned

Rank No. #1

EDGELEC 100pcs 5mm 395-400nm UV Ultraviolet LED Light Emitting Diode Clear Round Lens 29mm Long Lead (DC 3V) LEDs Lights +100pcs Resistors (for DC 6-12V) Included,Bright Bulb Lamps

Product Overview: 100 pcs LED Diodes + 100 pcs Resistors
Product Features: UV(Purole) - 5mm Round Clear Lens
Product Parameters: 29mm Long Lead / DC 3.0V-3.4V (IF=20mA) / 0.06 Watts / 2pin / DIP LEDs
Product Parameters: Luminance Brighter Up To +20% / Wavelength 395nm-400nm / 30° Viewing Angle / Single LED Diodes Wight: 0.29g
Accessories: 100pcs 430ohm (For DC 6-12V) 1/4 Watt Metal Film Resistors Included / ±1% Tolerance

Rank No. #2

LEDGUHON 10Pcs 3W High Power Led Chip,400nm Violet Purple Light Emitter Diode Components for DIY Lighting (700mA,3.2-3.6V,400-405nm,140deg)

Quality Insurance:The inside of this high power led light is made of high quality chip, double gold wire soldering, copper bracket package, bringing you quality assurance in the process of use
High Color rendering:This high power led clips has high color rendering, high brightness illumination, and a wide range of lighting angles to extend your lighting range
Heat dissipation：Strong heat dissipation performance, large heat dissipation area, do not worry about the use of the process of excessive temperature
Widely Uses: medical ,Nail polish,mosquitoeattact,and scorpion catching Indoor Outdoor Commercial and Residential Architectural Decorative Entertainment stage light Uplighters/Downlighters lamp of fluorescent agent
The high power led lights are available in a variety of options to meet your different needs

Rank No. #3

EDGELEC 100pcs 3mm 395-400nm UV Ultraviolet LED Light Emitting Diode Flat Lens 29mm Long Lead (DC 3V) LEDs Lights +100pcs Resistors (for DC 6-12V) Included, Bright Bulb Lamps

Product Overview: 100 pcs LED Diodes + 100 pcs Resistors
Product Features: UV(Purole) Lights / 3mm Flat Clear lens
Product Parameters: 29mm Long Lead / DC 3.0V-3.4V (IF=20mA) / 0.06 Watts / 2pin / DIP LEDs
Product Parameters: Luminance Brighter Up To +20% / Wavelength 395nm-400nm / 60° Viewing Angle / Single LED Diodes Wight: 0.15g
Accessories: 100pcs 430ohm (For DC 6-12V) 1/4 Watt Metal Film Resistors Included / ±1% Tolerance

Rank No. #4

Vrabocry 20 pcs High Power Led Chip 1W Uv 395nm-400nm 300mA - 350mA / DC 3V - 3.4V / 1 Watt SMD COB Light Emitter Components Diode Bulb Lamp DIY Lighting

1Watt 100LM-110LM 30mil chips 120-140 degree Emitting Angle
Input(DC): 300mA-350mA / 3V-3.4V
Constant current LED drivers are recommended for high power COB LEDs.
Working temperature should be less than 60 Degrees Celsius / (140 Fahrenheit) with a Heat Sink System.
Packing included:20pcs led lighting source

Rank No. #5

EDGELEC 30pcs 12 Volt 5mm UV LED Lights Emitting Diodes Pre Wired 7.9 inch DC 12v Ultravoilet LED Light Clear Lens Small LED Lamps

Prewired with built in Resistor, 20000 hours+ Lifespan.
Product Overview: 30pcs Pre-wired 5mm UV LED - 5mm Clear Lens
Product Features: Prewired LED For DC 12V (Preloaded 1/4w Metal Film Resistor) - 7.8 inch Wire Lead (7-Core Pure Copper & Tin-Coat At The End)
Product Parameters: The Anode: Purple Wire / The Cathode: Black Wire / Forward Voltage: DC 12V / Forward Current: 20mA / LED Viewing Angle: 30°
Widely Applicable: DIY Hobby, Electronic Project, Decoration, Instruction And Lighting…

Rank No. #6

CHANZON 10 pcs High Power Led Chip 3W Purple Ultraviolet (UV 400nm / 400mA - 500mA / DC 3V - 3.4V / 3 Watt) SMD COB Light Emitter Components Diode 3 W Ultra Violet Bulb Lamp Beads DIY Lighting

3Watt / Ultra Violet / 400nm / 45mil chips / 120 - 140 degree Light Emitting Angle Lightbulbs Super Bright Intensity LED Chips
Input(DC): 400mA-500mA / 3V-3.2V (Best Match with "Chanzon 450mA Constant Current LED Driver")
Integrated Chanzon High Quality COB LED Panel, High Brightness Chip on Circuit Board / Double Golden Wire / Copper Frame)
50000 Hours Life Span (Working Temperature should be less than 60℃（140F) with a Heat Sink System)
Total Shipping Weight: 0.48oz / 0.014kg (Pack of 10)

Rank No. #7

LEDGUHON 10PCS 3W High Power LED Chip,Purple Light Emitter Diode Electronic Component Repairing LED Lamp Bulb DIY Lighting(700mA/3.2-3.6V/140deg/410nm-415nm)

Appearance Structure: High-power circular package with positive and negative metal leads (left lead marked “+”). A UV LED chip is mounted at the center, connected to electrodes via 999 pure gold bonding wires. The substrate is made of high-thermal-conductivity material and encapsulated in a copper frame. Rated power: 3W; rated current: 700mA.
Multifunctional:LED chips can be used as replacement parts for counterfeit detectors, curing machines, PCB circuit boards and violet lighting fixtures, as well as for DIY lighting projects
Premium Light Source:These LED chips feature high photoelectric conversion rates and low power consumption, helping to save energy and reduce maintenance costs
Tip:Proper heat dissipation is recommended, and constant current LED drivers are recommended for best performance
We offer high-power UV LED chips with multiple wavelengths and beam angles. These chips serve as standardized replacement components for professional lighting equipment (curing, inspection, etc.) and are also ideal for DIY UV lighting systems and small personal projects.

Rank No. #8

LEDGUHON 395nm-400nm UV LED Chip, 3W 5V 700mA SMD COB Chip with Aluminum Heatsink, 31mm Circular for UV Curing, Counterfeit Detection, Stage Lighting & DIY Projects (5 Pcs)

LEDGUHON focuses on COB LED chip manufacturing, providing multi wavelength, multi angle, and multi model products that can be seamlessly integrated into various lighting fixtures. It is also the first choice for DIY lighting projects.
Main application scenarios： Suitable for various professional and creative scenarios: UV curing, safety verification, special effects: creating a stage black light atmosphere or decorative lighting, industrial and scientific equipment: used as a replacement component for related instruments.
Sturdy structure and stable operation guarantee Using a circular aluminum based PCB board with a diameter of 31 millimeters, it itself constitutes an efficient heat sink, which helps manage heat during long-term use. The working parameters are 5V DC/700mA (to be used with a constant current driver). The 6-chip SMD array structure ensures uniform and high-intensity ultraviolet radiation output within a compact size.
Accurate 395nm-400nm high-intensity ultraviolet light source Specially designed for emitting concentrated ultraviolet light ranging from 395nm to 400nm. This 3W COB chip can provide specific wavelengths suitable for professional scenarios, commonly used to excite fluorescent materials (such as anti-counterfeiting detection) or initiate the reaction process of photosensitive materials (such as some UV cured resins and adhesives).
Easy to integrate and install： Adopting surface mount device (SMD) technology, the structure is compact and easy to solder and integrate into various customized circuits, replacement modules, or prototype projects. Its output is stable and can be used as a reliable component for professional maintenance or advanced DIY lighting solutions.

Rank No. #9

CHANZON High Power Led Chip 100W Royal Blue Plant Grow Light (440nm - 450nm / 3000mA / DC 30V - 34V / 100 Watt) SMD COB Emitter Diode Components 100 W Bead for DIY Hydroponic Aquarium Growing Lamps

100Watt / Royal Blue / 440nm - 450nm / 3000 - 4000LM / 30mil chips / 120 - 140 degree Light Emitting Angle Lightbulbs
Input(DC): 3000mA / 30V-34V (Best Match with "Chanzon 3000mA Constant Current LED Driver")
Integrated Chanzon High Quality COB LED Panel, High Brightness Chip on Circuit Board / Double Golden Wire / Copper Frame)
50000 Hours Life Span (Working Temperature should be less than 60℃（140F) with a Heat Sink System)
Total Shipping Weight: 1.27oz / 0.036kg (Pack of 1)

Rank No. #10

XYCN 2 Pack 500W LED Black Lights,Outdoor Flood Blacklight Light with Plug, IP66 Waterproof 395nm to 410nm forGlow in The Dark, Dance Party, Stage Lighting, Body Paint, Fluorescent Poster, Neon Glow

IP66 waterproof：500W UV blacklights wavelength ranges from 395nm to 405nm,Easy to position with adjustable bracket. Easy to use
Ease of Installation/Features：Equipped with 5ft cord and switch, it can be conveniently switched on or off, standard 120V US power cord with plug, the black light can be used anywhere with a power outlet, No need for wiring. Easy to position with adjustable bracket. Works with AC input from 100-130V.
High Quality 500W Black Light： New outdoor 500W black lights used SM3030 LEDS, high-quality aluminum housing, high-speed heat dissipation, built-in Front Cover, IP66 waterproof ring, Tempered Glass, High efficiency Reflection groove, up to the 120° irradiation angle and the 180° rotating bracket
Application Scenarios：500 watt black light suitable for basement open air and humid environment. perfert for homes, outdoor blacklight parties, Halloween party, music stage, agreed Glow in The Dark, black light sand art, black light curing, black light art exhibition, black light Fluorescent painting,clubs, bars, stage performances,neon objects, black light body painting, such as Halloween party black light decoration, fluorescent painting, aquarium decoration, etc
EFFICENT COOLING & DURABLE：This black light flood light fixture is designed with a fin type heat sink, which means it acts like a radiator to dissipate heat. Die-cast aluminum housing, shock and erosion resistant. 55,000+ hours lifespan for LEDs,durable and energy efficient. Low heat, low power consumption

Last update on 2026-03-11 / Affiliate links / Images from Amazon Product Advertising API

How Do You Buy The Best 400Nm Led?

Do you get stressed out thinking about shopping for a great 400Nm Led? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching 400Nm Led, which is why we have assembled a comprehensive list of the greatest 400Nm Led available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 400Nm Led that you consider buying. Your questions might include the following:

Is it worth buying an 400Nm Led?
What benefits are there with buying an 400Nm Led?
What factors deserve consideration when shopping for an effective 400Nm Led?
Why is it crucial to invest in any 400Nm Led, much less the best one?
Which 400Nm Led are good in the current market?
Where can you find information like this about 400Nm Led?

We’re convinced that you likely have far more questions than just these regarding 400Nm Led, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 400Nm Led, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 400Nm Led. Make sure that you are only using trustworthy and credible websites and sources.

We provide an 400Nm Led buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 400Nm Led currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

Brand Value: Every brand of 400Nm Led has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 400Nm Led?
Specifications: How powerful they are can be measured.
Product Value: This simply is how much bang for the buck you get from your 400Nm Led.
Customer Ratings: Number ratings grade 400Nm Led objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 400Nm Led.
Product Quality: You don’t always get what you pay for with an 400Nm Led, sometimes less, and sometimes more.
Product Reliability: How sturdy and durable an 400Nm Led is should be an indication of how long it will work out for you.

We always remember that maintaining 400Nm Led information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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The Best 400Nm Led of 2025 – Reviewed and Top Rated

How Do You Buy The Best 400Nm Led?

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