STEADY STATE IR SOURCE: MODEL EK-8520 HelioWorks, Inc. offers a unique steady state black body infrared emitter that operates at up to 950° centigrade and emits the full un-attenuated infrared spectrum. The radiometric intensity data for all of the sources were measured with a broad band thermopile radiometer having a Potassium Bromide (KBr) window. For related technical information see the TECHNICAL section. Key features include: Kanthal Filament with high Emissivity of 0.7 No Window Internal Gold Plated Parabolic Reflector for enhanced output hear infrared Standard TO-8 Package 3 Year Lifetime Electrical Specifications: Peak Voltage = 3.0 Volts DC MAXIMUM Peak Current = 1.48 Amps Peak Power = 4.4 Watts Voltage measured at base of header Package temperature must not exceed 100° C