An infrared heater, also known as a heat lamp, utilizes a high-temperature emitter to transfer energy through electromagnetic radiation to a cooler object. The wavelength of the peak infrared radiation varies from 750 nm to 1 mm, depending on the emitter's temperature. These heaters convert electricity into radiant heat, similar to the warmth of the winter sun or a coal fire. Infrared heaters, used indoors or outdoors, are considered safe with proper safety measures, including protection against burns and electrical safety to prevent fires. Compared to electric storage heaters or radiators, infrared panel heaters are highly energy-efficient, converting nearly 100% of electricity to heat and requiring less operating time for optimal output.