Coil Description The IJoy XL C3 0.2ohm coil has a fire activated green LED that illuminates the base of your tank. To top it off this coil features a triple vertical arrangement and a wattage range from 50 to 180 at 0.2ohms resistance. The IJoy XL C3 is built for mid to high wattage vaping with great airflow for big clouds and outstanding flavor. Each Pack comes with three of these coils. The XL C3 coil lights up green when fired. How cool is that? Built for mid to high wattage vaping with great air flow for big clouds and flavor.