USA PHELPSON(HONGKONG) INTERNATIONAL COMPANY LIMITED is a large corporation group specializing in the high tech energy saving products, covering the large-scale electric power equipment, air source heat pump water heater, air source air-condition water heater, solar air condition and so on commercial and home use energy saving products. Their branch offices spread most countries and areas all over the world, configure the first class software and hardware equipment and the advanced experimental method, has a seasoned and well-trained management team, technical team, marketing team, layout team, the public relation team and after service team from all over the world, with the advanced corporation management foundation, to set up a relative perfect transnational operating platform through information sharing and the resources comprehensive utilization, effectively coordinates and promotes the development of the core technology and the global service of PHELPSON. In USA, Europe, Hong Kong and so on, the main manufacture bases have obtained the ISO9001 international quality system authentication and the IS14001 environment management system authentication. Most of the products have obtained the UL of American UL. CE of European Economic Community, GS of German, CB of international electrician and China compellent authentication CCC and so on world high standard quality safe authentications