... self-regulation Rapidly temperature rising Safety Reliable, long life Application: Hot Glue Gun, Wax Heater, Crimper and Straightener, Coffee Cup ... HeaterTechnical dataVoltage: 12-240VAC or DC Surface Temperature: 122F(50°C)~572F(300 ... 3.6)mm, with insulation film (15~90)×(8~45)×(4.8~8)mm, with Aluminum plate ptc ceramic heater for hair straightener