A 20,000 BTUs high output tri-ring center burner for boiling, searing, pan frying and stir frying, one 10,300 BTUs burner offering high heat along with optional griddle control, and three dedicated simmer burners with 4000 and 7000 BTUs delivering consistent and accurate low heat for delicate cuisines. Zinc alloy knobs can last long time under the high temperature cooking environment. Their durable shafts and elevated, arched design minimize dirt and spill entry beneath. Grills are heavy-duty and continuous across the top of the cooktop, making it easy to move pots and pans around with no snags. Italy SABAF burners comes with full combustion and stable flame. The automatic electric pulse ignition uses a 120VAC power(Come with 3.6FT cord plug), which will become more convenience for your life. FFD safety system automatically cuts off the gas if the flame goes out. This dual fuel gas cooktop is designed for natural gas and liquid propane. The initial setting is for natural gas with a conversion kit for propane.