Difference Between 365nm and 395nm UV Lights for UV Curing, Stain Detection, UV inks etc

Рет қаралды 60,518

Electronics&Computers

Күн бұрын

Пікірлер: 124

@F355 2 ай бұрын

one of the most helpful videos I've watched on YT, glad I found it by chance.

@ElectronicsComputers 2 ай бұрын

@@F355 Thank you for the comment!

@KimSmith-b9v 5 ай бұрын

Glad I found this video clip. Was about to buy a flashlight with 395 nm but that I will not do after I watched this. Thanks!

@ElectronicsComputers 5 ай бұрын

@@KimSmith-b9v I'm happy to help.

@heyaoylemiolmus 4 ай бұрын

same

@Tiberius-84 8 ай бұрын

Thank you. I didn't know they were so different.

@ElectronicsComputers 7 ай бұрын

You’re welcome 😊

@martinohesse 10 ай бұрын

Hi! What light did you use to test the sunglasses? Is it possible that sunglasses let pass a slight amount of 365 but blocks the 395?

@ElectronicsComputers 10 ай бұрын

For sunglasses and ballistic glasses test I was using the 395UV light. If it says that lenses have UV protection, then they should protect from the whole UV spectrum. If you see that lenses let some UV light to pass through it's unsafe to wear such glasses/sunglasses.

@maha77 7 ай бұрын

So helpful, thank you. I just ordered the 365!

@ElectronicsComputers 7 ай бұрын

Good choice! I'm happy to help!

@cutedoggo4419 9 ай бұрын

Thank you so much for comparing it for different common use such as cats wee! Great Video!!

@ElectronicsComputers 9 ай бұрын

Thank you for the comment 😊

@ЕвгенийС-н3н 8 ай бұрын

Спасибо вы единственный кто дал наглядный ответ! 😊

@ElectronicsComputers 8 ай бұрын

I'm happy to help!

@ROM_000 4 ай бұрын

Great guide. I ordered 365nm for sunglasses test.

@ElectronicsComputers 4 ай бұрын

Thank you for the comment! You've made the right choice.

@mustafa_sapan Жыл бұрын

Hi, can 395nm is use for validating amber rosary?

@ElectronicsComputers Жыл бұрын

You should use a 365nm flashlight; the 395nm one is nearly useless for all applications.

@Haidar-313 11 ай бұрын

@@ElectronicsComputersWhy do they continue to produce the 395 model if the 365 model is superior to it in every respect?

@ElectronicsComputers 11 ай бұрын

395nm LEDs are very affordable. If you only need them for glue and paint curing, why pay more for 365nm? From what I can see, most UV flashlight manufacturers have already started to shift towards 365nm LEDs. If you're looking for a universal solution, 365nm would be the best choice.

@Haidar-313 11 ай бұрын

@@ElectronicsComputers thank you my friend❤️

@Sven745 5 ай бұрын

If uv light is blocked by uv glasses, I wonder if the uv fluorescence effect is visible thru uv glasses / filters?

@ElectronicsComputers 5 ай бұрын

Yes, it's perfectly visible because UV light includes some visible light as well. Otherwise, we wouldn't be able to see that purple light at all.

@Sven745 5 ай бұрын

@@ElectronicsComputers actually what I meant is if I put some uranium glass inside a cabinet with UV light inside of said cabinet, and coat the cabinet's glass door with 400nm UV filter foil, will I be able to observe thru the filter the uranium green fluorescence without the UV light leaking to the outside? If it was possible, I could use some really strong UV light and get the uranium glass to glow really bright without any UV associated risks for an observer.

@ElectronicsComputers 5 ай бұрын

@@Sven745 I have some stuff made of uranium glass, I'll check it and let you know.

@ElectronicsComputers 5 ай бұрын

@@Sven745 As I mentioned earlier, UV filters won’t affect fluorescence in any way. When you look through the filter on uranium glass, it significantly reduces the barely visible purple light compared to looking at it without any filters. What you're trying to do is similar to techniques used in aquariums and other applications, so it's not that uncommon. You may need something like this: alii.pub/6xdciv

@otomotivdunyas95 2 күн бұрын

Is 365 useful to detect paint differences in vehicles painted after an accident?What is the difference between 20w and 60w

@ElectronicsComputers Күн бұрын

UV lights are not going to help you with that task. In theory, if some spots were painted with paint that has significantly different chemical properties, the difference might be slightly visible. However, in most cases, it won't work. All you need is a paint thickness gauge, for example, this one for $15 delivered will do the job like a professional tool: alii.pub/74jqc3

@chicano323 2 ай бұрын

I'm in the market to purchase one to spot Scorpions at night. Which would be better for this specific purpose?

@ElectronicsComputers 2 ай бұрын

For scorpions, a 365nm UV flashlight is the way to go. It illuminates them clearly, but keep in mind that like most UV flashlights, it won’t make scorpions visible from long distances. You’ll need to be much closer-typically within a few feet (1-2 meters) -to spot them effectively.

@chicano323 2 ай бұрын

@@ElectronicsComputers you're awesome. Thank you. Just subscribed.

@injectionAI 6 ай бұрын

interesting. Everyone says to use 405nm uv light for resin curing so i figured 395 would outperform 365

@ElectronicsComputers 6 ай бұрын

Most UV resin are designed to be cured with 405nm light. The "photoinitiators" in these resins are specifically tuned to this wavelength, making the curing process more efficient and effective. So, I wouldn't use anything else other than 405nm UV light. The 395nm UV light should still be able to trigger the curing process.

@d_dadang5467 3 ай бұрын

for leak detection HVAC which one the best?

@ElectronicsComputers 3 ай бұрын

Between 365 nm and 395 nm UV flashlights, the 365 nm is more effective because it produces less visible light, making the UV dye stand out better. But I guess you know that, UV dye is not typically included in HVAC systems by default, you need to add it specifically for leak detection, as refrigerants don’t fluoresce on their own.

@RED-Saint1911 10 ай бұрын

I dont know about you or what you got as a 395 But my 395 uv light is from vastfire with usb c recharge And i can see what you see with yours 365

@ElectronicsComputers 10 ай бұрын

What's the exact model of your flashlight? Because all Vastfire flashlights that I've seen have 365nm UV light.

@Ri-eb1ns 3 ай бұрын

Thanks for the tests!

@ElectronicsComputers 3 ай бұрын

Welcome!

@javiertejedor4944 6 ай бұрын

amazin video.. I am looking for a light to detect rest of glue. Do you know what type of light the glue absorb?

@ElectronicsComputers 6 ай бұрын

Since 365nm UV lights are used in forensics because they react with a wide range of substances that can potentially fluoresce under UV light, that's what you need. 395nm UV lights are good only for curing UV paint and glue.

@VIProach 6 ай бұрын

So 395nm light is good way to chwck sunglasses for protection?

@ElectronicsComputers 6 ай бұрын

@VIProach UV light ranges from about 100 nm to 400 nm. Also, shorter wavelengths of UV light are more dangerous. For example, UV radiation in the 280-320 nm range is the one that gives you cancer. A UV flashlight with a wavelength of 365 nm would generally be a better choice.

@rezuanrazali 5 ай бұрын

My UV flashlight have both 395 & 365

@ElectronicsComputers 5 ай бұрын

Cool! Never seen such models.

@Adamshamblin-j7l Ай бұрын

Im looking to buy a uv light specifically for charging the glow in the dark phosphorescent paint i applied to the sights of my concealed carry. I know nothing about uv lights really but i want something that will make it glow the longest as the paint is reported to glow anywhere from 4-6 hours. Regular bright light takes far to long and isnt going to cut it if i need to recharge at night.

@ElectronicsComputers Ай бұрын

A UV light won’t ‘magically’ extend the glow duration beyond the natural limits of the phosphorescent paint. However, a good 365 nm UV flashlight will charge it quickly and effectively, giving you the maximum brightness and glow duration the paint can offer. If you’re looking for something that stays bright for long periods without needing recharging, you might want to consider tritium sights. Tritium emits a continuous glow without any external light source and typically lasts 10-12 years.

@Adamshamblin-j7l Ай бұрын

@ElectronicsComputers yea I have a db380, small little boot gun and I can't find tritium sights anywhere for it so figured I'd try this glow paint and wanted to get a good uv light to atleast be able to charge it on the go for the best results. Thanks for the help!

@edinpandzic5838 6 ай бұрын

what is even the purpose of 395 then?

@ElectronicsComputers 6 ай бұрын

The 395 nm UV LEDs were developed way before the 365 nm LEDs due to the relative ease of production. They were perfectly fine for UV glue and paint curing. Shorter wavelengths like 365 nm are more challenging to produce. 365 nm LEDs are considered superior because they emit UV light closer to the peak of UV-A range, which is more effective for a variety of uses including curing adhesives, medical applications, and forensic analysis.

@nicod974 8 ай бұрын

Try using orange filter glasses....

@thomasbolton8373 Ай бұрын

thanks for the great vid, so informative,

@ElectronicsComputers Ай бұрын

Glad it was helpful!

@hitodium 5 ай бұрын

Which one is better to fungus detection in cat?

@ElectronicsComputers 5 ай бұрын

@hitodium For detecting fungi, a wavelength of 365 nanometers is generally better. This wavelength is closer to the UV range that causes certain fungi to fluoresce, making them more visible. The 395 nanometer light is closer to visible light and may not be as effective for this purpose.

@hitodium 5 ай бұрын

@@ElectronicsComputers ok thanks for your feedback. I going straight to marketplace now.

@michaelswings7808 7 ай бұрын

Wich is the best uv light range to attract mosquto s.. My uv light 365nm?? Good or bad??

@ElectronicsComputers 7 ай бұрын

All insect zappers use 350-370 UV lights to attract insects, so I guess 365nm is the best option.

@Moscow12122 Жыл бұрын

Hello brother, I need help with a problem with my Xbox Series xThe temperature rises about up to 58°C It caused me to tear up frames per second However, I disinfected it and replaced the thermal paste. I hope you can help me ❤.

@ElectronicsComputers Жыл бұрын

Have you seen my video on how to do that the right way? When you remove the heatsink, it's important to replace the thermal putty or at least redistribute the old one so it can make proper contact with the heatsink. Otherwise, after removing the heatsink, there might be a small gap between the heatsink and the memory chips and other components.

@Moscow12122 Жыл бұрын

@@ElectronicsComputers First, thanks for your response But I think that the temperature is supposed to be 54°C, the highest degree, and that is usually 22 or 23 degrees. The air conditioning operator and the device, the place I have is completely open and ventilated. My cousin and I changed the thermal paste. He is an appliance maintenance technician. We replaced the paste used with Noctua NT-H1. I think it is the paste. It was distributed in the correct way, but not for sure

@ElectronicsComputers Жыл бұрын

@@Moscow12122 are you measuring the temperature on the heatsink? If so, 54°C is a pretty normal temperature. The APU and other components generate a lot of heat, and the heatsink absorbs all that heat. There's no way it will be 23°C; it's impossible. Just go play and enjoy your upgraded console. You did everything right.

@Moscow12122 Жыл бұрын

@@ElectronicsComputersI mean to you, the temperature of the living room, not the cooling room, is 23°C. I measure it using a temperature sensor. The measurement was from the top of the fan, and the highest temperature I reached, I think, is 58.2°C from the fan at the top. Is this normal?

@ElectronicsComputers Жыл бұрын

@@Moscow12122 Totally fine!

@kchaney56 9 ай бұрын

Thank you for this.

@ElectronicsComputers 9 ай бұрын

Any time

@ERVIN-UJKA 3 ай бұрын

Which is better for spotting golf balls at night?

@ElectronicsComputers 3 ай бұрын

For finding golf balls a 365 nm UV flashlight is usually a better choice because it causes many objects to fluoresce more clearly.

@aradashrafi846 Ай бұрын

And yes, for some reason in UV the lower wave length is much weak

@ElectronicsComputers Ай бұрын

It's quite the opposite actually! A higher wavelength means a lower frequency and less energy, not more. The energy of UV light increases as the wavelength decreases. Thus, 280 nm is actually a lower wavelength (within the UV-B range, 280-320 nm), and it is more damaging because shorter wavelengths carry more energy.

@DevBabu-o5z 9 ай бұрын

❤Thunkyou very much

@ElectronicsComputers 9 ай бұрын

Happy to help!

@DevBabu-o5z 9 ай бұрын

@@ElectronicsComputers U V 395 black light HOW much it is

@Mgaak 6 күн бұрын

Violet light has more energy so the wavelength should be smaller. Why does 365nm has blue not violet colour ? (Why it's even visible😮)

@ElectronicsComputers 6 күн бұрын

@@Mgaak A 365nm UV LED tends to appear more bluish, while a 395nm UV LED looks more purple. 365nm UV light is more powerful and potentially dangerous than 395nm because it's closer to the UVA range. The purple or bluish color you usually see in cheaper UV LEDs because they also emit some amount of visible light.

@Mgaak 6 күн бұрын

@ElectronicsComputers but in physics light with smaller wavelength tends to be move violet not more blue.

@ElectronicsComputers 6 күн бұрын

@Mgaak The wavelength of light that the human eye can see ranges from about 380 nm to 750 nm. Violet light starts around 380 nm. So 395nm UV light is purple. The shorter wavelengths of UV light more bluish it appears. After that goes X-ray. I think you're confusing frequency with wavelengths. The higher the frequency, the shorter the wavelength, and vice versa.

@Mgaak 5 күн бұрын

@ElectronicsComputers well the thing is I have a PhD in physics and I do know how light works pretty well. I did experiments with light as well as theoretical description and when you use tunable laser, even semiconducting, as you decrease wavelength you go blue to violet not violet to blue. Maybe there are some extra diodes in the blue one ? Did you try to use grating to verify the wavelength?

@ElectronicsComputers 5 күн бұрын

@@Mgaak While I don’t have a PhD in physics like you, my background is in computer science and electronics engineering, so I approach this from a practical angle. UV LEDs work differently depending on quality. High-end UV LEDs like those in forensic or industrial equipment, emit pure UV light with almost no visible light. Cheaper UV LEDs emit visible blue or purple due to impurities or design choices, such as the use of certain phosphors. This visible light isn’t part of the UV spectrum itself but comes from imperfections in the LED manufacturing process. It’s not a fundamental physics issue but how these LEDs are made and perceived in real world use.

@BeatGuy-y6b 6 ай бұрын

How do you start it

@ElectronicsComputers 6 ай бұрын

By pressing the button.

@lmwlmw4468 Жыл бұрын

Great video.

@ElectronicsComputers Жыл бұрын

Thanks!

@bullyfrog314 Жыл бұрын

@@ElectronicsComputers is 365 is safe to use as long as you didnt expose your skin and eyes directly

@ElectronicsComputers Жыл бұрын

@@bullyfrog314 Nothing happens to your skin even with prolonged exposure, but be extremely careful with your eyes. Never shine it directly on your eyes or on highly reflective surfaces.

@baird5776mullet 11 ай бұрын

Why would anyone buy a 395?

@ElectronicsComputers 11 ай бұрын

It's cheap, and if you just need it for curing UV glue and paint, then it's a pretty good option. But if you need a universal, all-purpose solution, then, of course, you need a 365nm UV flashlight.

@baird5776mullet 11 ай бұрын

@@ElectronicsComputers T.Y.

@herbertnatanael 9 ай бұрын

Unknown to me, I almost bought the 395nm one to observe fluorescent stones but I decided to research more and discovered that they are a bad option for my use.

@Gaming-Steve 9 ай бұрын

@@ElectronicsComputersdo you know where i could get 365 strip

@ElectronicsComputers 9 ай бұрын

@@Gaming-Steve Sure! You can buy them here: alii.pub/6xdciv

@hoover274able 9 ай бұрын

Can I use this light to see if coke has cut with another substance?

@ElectronicsComputers 9 ай бұрын

While UV flashlights can sometimes reveal adulterants, they are not always foolproof and may not detect all types of cutting agents. However, in most cases, if you shine it on absolutely pure coke and the one that was cut with some substances, you'll definitely notice the difference. You have to use a 365nm flashlight with a black lens, just like in the video.

@ahsanial_banjari 3 ай бұрын

What Nm is suitable for things like diamonds, and other precious stones?

@ElectronicsComputers 3 ай бұрын

365nm UV Flashlight is often considered better for viewing diamonds and precious stones. The 365nm wavelength produces less visible violet light, so you can better see the fluorescence of the gems without interference from the flashlight's glow. It's ideal for professional inspections because it highlights the details more effectively.