power supply

Yesterday and my friends to our company to buy things, just to see this to a power supply to do promotions, one of my friends to see such a preferential price immediately to their company to buy some, I also advised my friend to go inside the shop do not look, today we are out shopping we want to buy something, don’t waste your time on these things, but my friends didn’t listen to my advice or he and I won’t buy super power supply, after the use of a power supply product to feel other products have no interest at all, I have to recommend more friends buy this product so good quality in the future if not buy it.