VEVOR 16-inch Commercial Electric Pizza Oven Countertop - 1700W Adjustable Temperature with 0-60 Minute Timer | 360° Uniform Baking for Perfect Pizzas | ETL Certified for Home & Restaurant Use | Ideal for Backyard Parties, Catering & Pizzerias

This unit has 2 power cords. I plugged them both in the same duplex plug and after just a few minutes, it popped the 15A circuit breaker. I don't have (yet) a 20A circuit in my kitchen but the cords are long enough that I could plug it into 2 different 15A circuits.The timer doesn't control the oven, it is just for your convenience. The switch at the bottom only controls the single (between the shelves) light. It really lights up the inside of the oven.The top cord powers the very top burner only (or at least seems to) in the upper oven. The bottom cord powers the top burner on the lower oven (which also heats the stone for the top oven), the bottom burner for the lower oven and the light.We love how much better our pizzas turn out with this excellent oven.