We are a distributore of ac from China. I would like to take this chance to introduce our company to you and I guarantee that you will be satisfy our products and services. All our models are specifically for sales in the United Sate, Europe, and South America. Our products are certified by UL, EA, CE, CSA, SASO. So, please take rest on the quality assurance when you come to us. Again, we are looking long run business, and trustworthiness.