Figure 3: Spectral irradiance of a water-filtered infrared-A radiator
(Hydrosun® radiator 501 with 10 mm water cuvette and orange filter OG590) at approximately 210 mW/cm² (= 2.1 x 10³ W/m²) total irradiance (from [1]); (visible light (VIS): 380-780 nm; infrared-A (IR-A): 780-1400 nm; infrared-B (IR-B): 1400-3000 nm)