Hello, I'm rather new to modding a case but so far I have installed a blowhole on the top of my computer with a switch. I bought a couple of 12V LED'S: http://telewizor.eu , but they are not very bright. I just wanted to know if there was a recommended voltage. I will be running the main power source for the LEDS off of the power supply. I have one of those 3 pin adaptor things. Any help would be appreciated. I will post pictures of the blowhole soon.