This CO2 laser tube Power: 45w /watt, Outer Diameter: 50mm, Length: 800mm, universal for AC 110V and 220V.Pre-connected cable: There are pre-connected cables for matching the positive and negative poles, which is easy to install. If you need support during installation and use, please dont hesitate to drop us a message via Amazon.Quality Assurance: Each tube is tested before shipping and we will provide a safe packaging. If any problem after receives the tube, do let us know. We are willing to provide the best services and will provide 1 months warranty (except man-made damage).Application: This CO2 laser tube is mainly used for laser cutter or laser engraving machine, which can carve and cut acrylic, cloth, leather, bamboo, wood, engraving, etc.Company Profile:Dongguan HUNST Laser Technology Co., Ltd. was established in 2008 and is located in Dongguan, Guangdong, a world-famous manufacturing city. It is a high-tech company specializing in the R&D, production and sales of mid-to-high-end industrial laser equipment and related spare parts.Dongguan HUNST Laser Technology Co., Ltd. relies on the developed light industrial machinery and complete supply chain in the Pearl River Delta. After years of continuous development, we have high-quality employees with various professional skills. We currently have a variety of product lines, covering carbon dioxide laser cutting machines, laser engraving machines, large-size laser cutting machines, laser marking machines and a full range of laser accessories. Product application fields include: textile, leather, clothing, industrial cloth, advertising, handicrafts, printing, packaging, electronics, medicine, hardware tools, molds and many other industries.The company has a complete and scientific quality management system. The products are exported to Southeast Asia, Europe, North and South America, the Middle East, Oceania and other countries and regions, and are well received by customers at home and abroad.Dongguan HUNST Laser Technology Co., Ltd.s integrity and product quality have been recognized by the industry. The products have passed the CE certification of the EU and export-oriented Alibaba Group member companies.Friends from all walks of life are welcome to visit, provide guidance and negotiate business.