Quite simply this is the best 60mm x 38mm fan on the market has 5 blades so doesn't whine as much as 7 blade designs and pushes a crazy amount of air. Using this wired to a cig plug with no issues can also run this at 7 and 5V with no issues though you have to give the blades a prod at 5V to get it going but once it starts spinning its fine. I'll use this to keep electronics cool and to use as a mini desk fan.