Patient Model 250 Watt Heating Element * Replacement 250 Watt Ceramic Generator * Features Ceramic Heaters That Change Color From Coral To Gray When Energized * Nickel-chromium Resistance Wire Embedded In Ceramic Casting Provides Uniform Heat Transmission 96% Thermal Efficiency With Low Element Surface Temperature * Inner Body Of The Element Is Filled With Ceramic Fiber Insulation Which Conserves Energy Maximizes Efficiency And Minimizes Heat Build-up At The Terminal Area * Heat-up Time Is 3-9 Minutes To Reach 90% Of Maximum Temperature * Height Adjusts 35 To 58 * 250 Watt Lamp * Recommended For Those Patients Requiring Supplementary Heat Treatments At Home * 12 Flexible Arm 3-conductor Cord Set 250w Ceramic Heater And Protective Screen *