This company has some decent products, but their technical support and technical information given on their website is not very good.
Their customer service is okay, I had to make some returns and these returns went fairly painlessly. I recieved a full refund for a transformer (that did not perform as well as the advertised specifications) and a replacement for an LED bulb that was not working. They paid for return shipping and gave full refund.
Overall, I say that this company has good products, but their technical support is lacking and the information regarding LED "drivers" on their website is not trustworthy. For purchasing a power supply for LEDs, I would recommend searching for one on www.mouser.com.