It used in 1.5 V battery, for gas appliances (like BBQ,Gas heater). The pulse igniter adopts AC input. switch control spark Features: 1 ... 30,000 times 5)Fixing Hole: 22mm6) Applications: gas ovens, stove, heaters, gas lamps,BBQ and other gas appliances AA battery operated gas igniter, YD1.5-1B(2B)