TruePower 709-1254 10-Inch Carpet Seaming Iron, 800-watt Contoured, low profile design joins carpet fast & efficiently Heat shield protects carpet backing from overheating Even heat distribution facilitates melting & smooth seams Convenient 5-position front thermostat switch 4 Heat Settings: 147 Degree-190 DegreeF; 230 Degree-298 DegreeF; 311 Degree-349 DegreeF; 374 Degree-442 DegreeF;