Vi, is the electric cord included? It says in the specifications. If not, I see 2 or 3 cord options. Which one should I buy?

Hi, Milton! Thank you for this inquiry. No, a power supply cord is not included in the box. Make sure you get the right power cord based on the electrical requirements and the type of outlet you have. If your home is wired with a 4-prong outlet (common in newer installations for safety reasons), you'll need a 4-wire cord. If your home is using an older 3-prong outlet, you will need a 3-wire cord. Typically, cords range from 3 to 6 feet in length. If you're not sure how to install the cord yourself or if you're not familiar with electrical work, it may be a good idea to hire a licensed electrician. ~Juan