Please i am so curios to know what is the difference between Gigabyte,Hec,Crosshair...etc PSUs and local PSUs, all these brands of PSUs with 600w cost around 70$-90$ USD while these local PSUs with 1200w only cost around 6$-9$ USD !!! really want to know what is the difference between them and if i bought one these PSUs with 70$ am i wasting my money like this ?
How quickly do you want to start a fire? The cheap power supplies are cheap for a reason - they lack safety features, use substandard components and are serious fire hazards. Not to be dramatic, but you are risking your life using a cheap psu.
When buying a PSU it is important to get a quality unit as your whole system relies on it. Avoid those cheap units that claim to be 1200watts, as they are low quality, falsely rated (there is no way that a $60 no brand PSU will do 1200watts), and can damage your components. Get a quality unit from Antec, Corsair, Seasonic, or some other quality brand, avoid unknown brand names.
Power supplies are one of the most important (and mostly overlooked) components by people on the cheap...
Think of a power supply as the heart of your system, it pumps power to all your components, or it doesn't, or worse like others have said it can start a fire if it does.
Me personally I only trust PC Power & Cooling but the brands mentioned above are good too.
You also need to consider all your components and then get a power supply that is rated higher than that so that it can handle any possible future upgrades.