are powerx psu's anywhere near as good as thermaltake psu's

ok i want to buy a new psu that is a silent one, although price is not a problem for me i would perfer spending as little as possible so i went on to ebay to have a look and they have 500w psu's on there at £12.50. the picture has the brand name of powerX (link to the one i was looking at http://cgi.ebay.co.uk/500-Watt-ATX-...s=72:12|39:1|65:12&_trksid=p3286.c0.m14.l1308) ) so i was wondering if they was any good due to the cheap price, the other one im looking at are made my thermaltake as i no they are a company focused on quaility and in my personal opinion make great products but are more costly the Thermaltake TR2 500W PSU is £35 (http://cgi.ebay.co.uk/Thermaltake-T...rkparms=72:12|39:1|65:12&_trksid=p3286.c0.m14)

has anyone had any experince with the powerX brand compared to the thermaltake brand or any other of the higher end brands

 

If a PSU is only 12.50 pounds (I don't have the pound symbol on my keyboard) it's got to be a low quality unit. As with pretty much all PC parts, price is a direct indicator of quality. The more it costs, the better it is. I have never heard of 'PowerX' (made by Sumvision) brand PSUs, but it sounds kind of cheesy. The name "Sumvision" isn't the best name for a company either... as in "They should really get sumvision of what a good PSU is all about" LOL Just kidding. Anyway, looking at the picture shows me that it doesn't have its own on/off switch which is a sure sign of lower quality products. Only one SATA power connector and no PCIe power connector, only 12 month warranty, plus a total absence of tech info for the unit leave me seriously hoping you won't buy this thing. The power supply is probably the most important component in your PC. A low quality unit can lead to system instability, crashes, and in extreme situations, component failure. Considering that the PSU supplies everything in the PC with electricity, you should get the best possible unit you can afford. If you can only afford 12.50, then you should wait until you can spend more. It will be worth it in the end.
I went to the Sumvision web site product page for their power supplies (here http://www.sumvision.com.cn/searchResults.aspx?ptype=33) and they provide absolutely no information about wattage output, amperages, etc. No technical info at all. They also have numerous spelling anomalies on their web site (such as "hard drivers" and "power suppliers" and "floppy driver" are some examples) which all points to low quality products.
I'm not sure how things are in the UK, but here in the USA we can find out who actually built a 'rebranded' power supply by using the UL file number. Check out this article. http://www.hardwaresecrets.com/article/370 Again, I'm not sure this works for the UK, but if the same product is sold in the US, it should work.