I've looked around and these don't seem to exist.
I've been looking for 120x38mm fans to put on my 212+ in push/pull and all I've found are 3-pins. I was hoping for LED as well, but I don't think any 38mm fans have them.
Please tell me where I could find them as I'm sure others are looking for them.
If they don't exist, I'm going to go with Gelid Wing PLs. Quiet, 75.6 cfm, 2.66 mmAq, and they look cool.
edit: My parent's computer has a 120x38mm intake fan with a 4-pin conector, but it doesn't quite look like pwm.