I have less experience about electricity and electronics but I am so sure that you can't use a pressing iron on a stabilizer, am I right? The grid power is not stable since 30hours ago, it fluctuates up and down and it's affecting my rig so I am thinking, is a stabilizer safe for a mining rig? I'm drawing 1000watt so what's the best stabilizer I can use if I can....
An electric kettle or iron does not need a stabilizer, because they will work at low voltage, only the heating process will be longer.
I have 220 volts in the network, but there are jumps when the voltage drops to 180 volts and a little lower. A long mining experience in the village has shown that ATX power supplies from well-known manufacturers such as Corsair can easily cope with this task.
If your voltage fluctuates between 100-220 volts, then this is illegal, and your electricity supplier must deal with this problem.