A: This fan kit is only compatible with Humi-Care electronic humidifiers. I personally like Humi-Care the best, I've had a lot of good luck with them. But any of the brands you mentioned are good choices.
A: It attaches to a power cable. The fan comes with screw holes so you can attach it where ever you would like in your humidor and it will circulate the air just the same. The fans dimensions are 1 5/8 x 1 5/8 x 3/8.