I have used several and the best by far is the Sunbeam from
svc. The leds are real bright as amcdonald said but just don't look directly at them.
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I have a door on my case (antec plusview 1000amg) and it closes fine. Though you'll need 4-3 pin adapters if you plan to use fans that have only a 4 pin molex. It has all 3 pin male connectors. svc or 2cooltek.com sells 4-3 pin adapters, or you can make your own.
Another great thing about it is the controls turn completely off so you can use it to control cathodes, as I do.