The PanelIR Model 4555 High Density Infrared Panel heater is a modular, panel-type heating unit that combines radiant and convection heating techniques. A forced air flow system turns waste heat into usable energy and allows the heater to operate efficiently at very high power levels. This heater is available with either medium-wavelength or short wavelength lamps. You also have the choice of a ceramic reflector or an aluminium reflector.