110V. It cannot be installed outdoors without any shelter because the motor is not waterproof. If you are going to install it outdoors, there must be a cover above the machine. All products on our official website come with a 12-month warranty. If you purchase a product that has a problem within one year, we will be responsible for you. Here is the link: https://www.vevor.com/pages/return-policy.<br/>
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