Originally Posted by
hanulec
if i sell this fans (i might be forced to try... still waiting on the vendor, only 10 weeks into the RMA process
) they will be called Seis fans. 'seis' is six in spanish, for the amount of voltage they can handle. same fan physically, not the same fan electronically. they can only run up to 6.7 volts (instead of 8.5v) so they must be run from the receiver voltage.
they are not as powerful because they are running at a lower voltage. when running a Geisha and Seis fan from the same power source (say a 1s pack) the Seis fan is actually pushing more air.
I can vouch for the cooling power of the Seis fans. Have been using them recently, and done a bunch of testing. They cool really well. They don't sound like a Tornado, but I was getting upwards of the same temp reductions with them.