>>932338 5v wall wart. Any cell phone charger will do. >>932339 Current of the power supply can be greater than the current of the fan. Power supply current rating tells you the maximum it can supply. The current it will supply to the fan is the current draw of the fan.
>>932344 if he wants the fan to blow up. amps in a fan control the torque, if the fan expects to be supplied with 200 ma and he supplies it with 10 amps he might have a bad time. its almost as bad as saying "an led will draw only as much current as it needs, so a 2a power supply will be fine"
>>932344 >>932345 don't listen to these idiots, they are trying to make your fan blow up. These things usually take AC current or they don't work, applying DC will cause them to overheat. Your best bet is to hook it directly up to the wall.
>>932382 Current doesn't work like that. The ATX power supply that would be powering the fan in a PC is 10A or more, but all that means is the power supply will shut down if a load draws more than 10A. The current draw is set by the load, not the power supply. The fan will draw the current it was designed to draw if you give it 5v.
>>932382 Thats not how it works at all. If you have a welder outputting 12 volts and capable of outputting 100+ amps of current then hook up a 12v fan to it, all the fan will do is start drawing how ever many (milli)amps it needs and happily blow some air.
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