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Is there such a thing as USB powered cold cathode lights?

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knoober

Member
Joined
Mar 18, 2015
I am looking to add a blacklight (UV right?) to the case and all the lights I can find are powered from a molex plug. The problem is that unless the supplied cable is long enough to run around almost the entire edge of the case, it will ruin my already tenuous cable management. I recall a rumor about lights that ran on USB, but I cant track it down with a web search.

So what I would like is either A) USB powered cold cathode

B) USB powered LED lights )but they kinda have to be blacklights/UV)

any help is appreciated, thanks :)
 

petteyg359

Likes Popcorn
Joined
Jul 31, 2004
Cold cathode is all 12v powered. USB is 5v.

If you've got internal USB 3.1 headers, that includes USB-PD (power delivery). Probably not useful, since you'd need an active cable to select the 12 V setting plus another adapter to convert to whatever input your CCFLs have.
 

NiHaoMike

dBa Member
Joined
Mar 1, 2013
There are 5V CCFL inverters. But CCFL is becoming obsolete very quickly in favor for LEDs. UV LEDs are pretty cheap and only need a resistor to run from 5V.
 
OP
knoober

knoober

Member
Joined
Mar 18, 2015
Wouldn't you just know it? The order that has my cffl in it has some UV flashlights as well and I never thought of that! I'll have to see if I can run one of those flashlights from the fan header and a spare fan extension. Comedy at its best I guess :)