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So I bought one of these cheap 12V 20Watt floodlights on ebay for about $6. Mine is RED.
Using my test PSU I was able to learn which was ground and which was power. I have no idea why it
wasn't marked??? The ground side I markered in black.
These are jumpers. Most PC enthusiasts should have at least a few around. Otherwise they're really cheap
at Radio Shack.
Just force them on the polls. Like this:
Then use an old molex cable separating the 12V (Yellow) and ground (black) cables. Connect the ground to
the black side as you markered in earlier, and the yellow to the other.
I used electric tape because my soldering iron was dead.
Then plug it in and power up.
It's definitely brighter than any cathode.
My basement was pitch black, but not anymore.
Imagine how bright a confined PC case would be!
In closing....
Pros:
- Extremely bright
- Easy to wire
- Cheap addition
Cons:
- This thing gets pretty hot after just a few minutes, so have a fan near it.
- 20 Watts is a lot of drain on a PSU so have a good 500 watts and more than one 12V rail. This bulb should not share a
rail with anything else.
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