This Ruddog 30mm fan was especially developed for the needs of RC cars. The extra long-life and high rpm of this fan makes it perfect to cool down your motor or electronics. Featured on this fan is a 240mm long black wire lead with a JR plug.
Voltage: 5-8.4 Volt
This product was added to our catalog on November 9, 2016
As for this fan...
I read the reviews before finishing a build and using it in my brand new carpet 2wd buggy. I did a bench test. Firstly, every time I turned it on, the fan's motor seemed to slowly raise RPM until a certain point--already a clear indicator something isn't right. Second, it proved to be a very weak fan. Now, for my bench test, I let it run and watched the temps of the motor's fan. By 3 minutes it was at its max temp, just short of 120*F and could easily see this fan having a short life and soon enough crapping out in a 5 minute run. Saved myself the drama of potentially ruining an expensive motor and the cooling fan going up in smoke--threw it out. Look elsewhere and don't fall for the low price.
Update... installed 2nd one (in a different vehicle even) seized up and overheated 2nd heat of use.
Another review says the same thing yet they gave the fan 4 stars? Doesn't make sense to rate it that high considering it stopped working the same day.
I don't know why there are so many negative reviews for this fan. I have had it in for about a month and it is super strong and keeps my motor cool.
Do not buy.