For those who are newbies in computer  world, you might be wondering what is the difference of low watt PSU(power supply) and high watt PSU..

When it comes in gaming or in video editing your computer will works well if your PSU does have a good wattage.. so what is watts anyway in connection with our computers?

according to a good source from the net..

It is very important. If you dont have enough power, your computer may randomly shut down and you may lose files.

another from pcworld.com : credits to Marco of pcworld.com

Power supplies are a frequently misunderstood—and overlooked—PC component. Many users choose a power supply based on total wattage alone, assuming that higher is always synonymous with better.  Others pay no attention to their PSU selection at all, and settle for whatever abomination arrived with their machine. But considering how important a good power supply is to a system's stability and long-term reliability, it’s a shame that PSUs get so little attention in comparison to sexier components like graphics cards and SSDs.

It doesn’t help that the power-supply market is awash with products from unscrupulous manufacturers that use substandard components and overstate the hardware’s capabilities. Indeed, the abundance of PSU-related misinformation and deception in the marketplace would be comical if it weren’t so harmful to consumers. But finding a solid, efficient power supply is possible if you arm yourself with the right knowledge. We can help. 

so now that you know already the importance of the PSU on your system, and you also already know that PSU watts really matter when it comes in performance of your computer, I have a deal to make for you guys a good and cheap PSU for your system the "EVGA 500W ATX12V/EPS12V Power Supply " this 500 watts PSU can offer you good supply of electricity for your computer components to work well, because they have enough boost power from the PSU.