It's not necessarily the case of which is better, but more about which one suits your needs and requirements the best. 395nm+ (greater than 395nm is the visible light region, then moving into infrared). 'nm' stands or nanometer as a measure of wavelength on the electromagnetic spectrum. Some of our models emit at 385-395nm UV wavelength range, and others emit at 365nm. For example, miners, engineers, fishermen, fossil hunters, bone identification (human and otherwise), and scorpion hunters - to name a few user types - may prefer the longer wavelength and pound-for-pound higher relative UV intensity for longer range applications. The 385-395nm wavelength is sometimes preferred for applications which need higher intensity UV where the higher wavelength will also perform. Artwork and antique appraisal is a good use case example.

For forensic type work, professional stain detection, geology, cell staining, leakage detection, NDT, or in applications where you need high contrast in fluorescence, the 365nm is a sought after wavelength.Īlso, bear in mind that some substances will only show up under 365nm UV, so that is also a key consideration. Not necessarily better, but different, since it depends on your usage. The difference between 365nm and the 385-395nm ultraviolet is that you’ll get different results. In other words, by simply fitting a filter to the 385-395nm will NOT give you the same wavelength as the V3 365m and therefore it will not give you the same results. (We say “no” but in reality there is some flux in that region but it isn’t significant relative to the majority 385-395nm wavelength). With the V3 385-395nm model, there is “no” 365nm emitted in the first place. So the real difference is in the UV wavelength, and the filter on the V3 365nm acts to accentuate the 365nm UV wavelength. The filter is not causing the difference in wavelengths, the LEDs are. They are different because they emit UV at different wavelengths. So the only way to tell is to test how vividly objects fluoresce back to you. The test of this is fluorescence of targets rather than the “brightness” of the light source itself. You'll only be able to see the fluorescence effects, which will amaze you. Ultraviolet light that is beyond the visible spectrum which you cannot see. The V3 365nm will appear 'dim' to you - some will even think it's a scam - but that's exactly what you're looking for in a 'UV light'. You won't be seeing very much non-useable visible light. More excitation occurs using the 365nm wavelength, meaning that with 365nm you'll see a lot more fluorescence and things will show which don't under higher wavelength UV such 390nm. This means that the maximum density of the flux peaks at 365nm and the filter ensures this over other UV 365nm flashlights in the market. So, coming back to what we just said - this light emits UV at 365nm wavelength. Below this is the 'ultra' violet region which the human eye cannot see. Note that visible light can start at 395nm+ which is the 'violet' region - the first region in the rainbow. This is filtered ultraviolet light emitted at 365nm (nanometer) wavelength. If you are looking for an excellent 365nm UV light then definitely look at the uvBeast V3 365 it’s well worth the money.” Don’t expect to have a bright blue light like you see with the 395nm lights, it’s just not there and almost looks dim until you hit something that does react to the UV and then it’s ”WOW” time.

There is a lens on the light that also blocks any stray non UV light so you are really getting as much 365nm UV output as you can get. I went around the house initially couldn’t believe all the stuff on the carpet that the 395nm lights don’t even show. Nothing I currently own even comes close to putting out this much true 365nm UV. As far as UV output, I was completely floored by how much 365nm UV this puts out, just amazing and it blows all my current lights completely out of the water. I already have plenty of the 18650s around and decided to add the extension to extend the battery life while testing this bad boy out. It was really nice that they include batteries and the charger. It came with two 18650 batteries, charger, and extension for adding a third battery if you wish and the light itself. The V3 is a very heavy duty light, built like a tank that could take a lot of punishment. I already have their uvMini version and was extremely impressed by the output of the 365nm vs my other 395nm lights. “I saw that uvBeast was coming out with a new V3 in 365nm and had to give it a try.

Professional black light flashlight