How hot does a lighter burn?

Approximately 1,976–2,204 degrees celsius

The amount of heat a lighter can generate depends on several factors, including brand and fuel type. However, on average, a typical butane lighter produces a flame with a temperature ranging between 1,976 and 2,204 degrees Celsius (3,589 to 3,999 Fahrenheit). This is sufficient to ignite a wide range of materials, including paper, wood, and fabric.