- Premium Quality Ultra-Violet Emitters - Commonly used in money / watermark detectors, blood and stain detectors - 5mm LED diameter - 20 emitters packed in OEM packaging . Note: cheaper UV emitters can be up to 80% cheaper and are known to have short life span, low effeciency, heat issues, etc. This emitter is time proven as they are used in our 12... Read more
-Work voltage 3,2-3,4 V (can be easily used with 3,3v batteries);
-Standard (20mA) max current consumption. UV lenght (as all cheap UV emitters) has wavelenght near 410nm. UVA range has 315—400 nm. So it has much more visible blue spectrum.
UV wavelength didn't shows any watermarks on US Dollars and Rubles (Under UV blinks only special ... Read more
They are really cheap and all of them work perfect. All have same intensity and and brightness. Good build quality. Could be brighter, and packaging could be better, but none of them are broken so no problem this time. When voltage is not enough they can turn bluish. The specs are not published, so no way to know range. They are not exactly UV, but ... Read more
They are cheap They work well The luminosity looks constant accross all LEDs They were all alive They could be brighter. I have a UV flashlight I got from somewhere else years ago and the UV LEDs in it are noticably brighter than these LEDs. If you were going to use these for a flashlight or room lighting, keep looking. These are not the ones you want.... Read more
-They all come OK
-They work as expected
-Can be adapted to use as flashlight The light is not UV at all, but it's okey for the price. Remember to use and appropiate source for connecting this led. If you are using a voltage source of 2.3 V or more, i recommend you to use a resistance. (calculate it with the formula : (Vforwad-Vsource)... Read more
Really good at UV properties
Used the pig LED (sku 1138) i made a simple UV flashlight
Very fun for pretending to be detective or to teach kids about the light spectrum
Tested it with teeth, body fluids, t-shirts, and paper
Good packaging all LEDs came undamaged The Specifications for these LEDs aren't posted on the product page. So i am afraid to connect ... Read more
- They look professional (as oppose to cheap)
- Good value for money
- Suitable for smaller applications
- Packaging was sufficient (bubble plast wrap), no leds bent here
- There is a distinct purple hue that these leds give off. I think this is normal for most cheap UV leds. The lighting is probably 30/70 purple and UV. I´ve come to realise that ... Read more
Cheap and functional. Somewhat irregular lighting pattern, so some trial and error is required to make an array which covers a larger area with UV light without dark spots. I used 40 of these to make a UV exposure box for PCBs. Works like a charm, but you'll need to be very careful to make sure you get an even exposure across the board. The LEDs have ... Read more
-The Light It's so great, if you know how to use it.
-All the LEDs where functional.
-The packing was good. -They come disordered, I recomend to put them into a tape to don't lose them.
-They Light could be More UV. I compare the light with a profesional UV Tube I used when I was a DJ, and Its really great, Obviously is not the same, the LEDS are less ... Read more
It's fairly bright but not extremely light, just as I expected, normal UV light It broke quiet fast, I tried out what happened if I did the plus on the min and the min on the plus.. (lol) It's getting quiet hot, I doubt it will last 2 hour in a row. It's funny to make some decoration on your walls but not bright enough to light up your walls. it's also ... Read more
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