Dan´s Data has posted a review on CaseETC PC blacklight and UV fluorescent coolant dye
Here´s what you get, besides the tube itself. There are four solder-free wire-splicers you clamp together with pliers; they´d probably work OK on a computer´s PSU wires. The tube itself just has a plain unterminated figure-eight cable coming out of it.Read more
There are also some plastic crimp-on wire end-caps, a couple of self-tapping mounting screws, a pre-wired switch, and a pre-wired in-line fuseholder with a one amp fast blow fuse in it. You could botch this setup together with nothing but pliers, but you´d really want to do some soldering to get it looking nice.
The package also contains somewhat tortuously worded instructions for installing the tube in a car. Installing it in a computer isn´t the most difficult feat in history, and any vaguely competent electronics hobbyist could figure it out. But this is not a plug-and-go solution.