Summit's collection of smooth-top radiant cooktops includes fully featured models sized for standard kitchen counters. The CR4B30MB is a 30inch wide 208-240V radiant cooktop designed to fit popular 29 1/2inch W x 19 5/8inch D counter cutouts. The surface is made from smooth EuroKera ceramic glass in a jet black finish for a durable, modern look. This unit does not ship with a power cord and must be hard-wired by a professional. Four elements let you meet a variety of cooking needs, with an extra large 2500W 9 3/4inch front dual zone element ideal for woks, Dutch ovens, and other larger cooking vessels. The inner element is just 5 1/2inch, perfect for smaller pots used to melt butter, chocolate, and more. This unit includes an 1800W 8inch burner located in the rear left, great for boiling water or heating up sauces in large pans while the front element is also in use. Two 6 1/2inch 1200W elements accommodate smaller cookware. The knob controls are located to the right, ensuring you won't have to reach over the controls when adjusting your pots and pans. Each knob features a stainless steel look for added style. For added safety, the knobs require a light push-to-turn force to help prevent accidental adjustments. A residual heat indicator light lets you know when the surface is still hot to touch. With its attractive design and smartly designed burner configuration,, the CR4B30MB is the perfect choices for convenient cooking.