Powering a UV LED

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d4rr3n

Newly Enlightened
Joined
Apr 19, 2006
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11
What is the max voltage and current I can safely supply to a NSHU550B Ultraviolet LED, the data sheet is below.
I think its 4 volts at 25 mA but just want to make sure




http://www.nichia.com/specification/led_lamp/NSHU550B-E.pdf



I don't know much about LEDs and was wondering how the intensity of radiation (brightness) would compare to an ultra bright white LED? I do realise that you can't see UV





Thank you for your help!
 
Last edited:
LumenHound

LumenHound

Flashlight Enthusiast
Joined
Apr 16, 2005
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1,797
Location
Toronto
Your current and voltage figures are correct.
The UV led will give off a dull purple glow that may be hard to see in a brightly lit area. You need to aim the light from the UV led at something that reacts well with UV to really notice it. Try pointing it at a spot on the whitest, brightest 8.5 X 11 sheet of paper you can find (110 brightness rating works well) in a dim room to see what UV light can do.
 
The_LED_Museum

The_LED_Museum

*Retired*
Joined
Aug 12, 2000
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Federal Way WA. USA
The reddish-orange bar codes on mail, and the red, orange, or green stickers on many packages from UPS and the USPS should also fluoresce (glow) quite brightly when exposed to the UVA radiation from an LED like this.
 
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