What is the spectrum of solar radiation that reaches the Earth’s surface?

The solar radiation that reaches the Earth’s surface spans a wide spectrum of electromagnetic waves, including ultraviolet (UV) radiation, visible light, and infrared (IR) radiation. The majority of solar radiation is in the visible light spectrum, with wavelengths between 400-700 nanometers (nm). The remaining radiation is split between UV radiation (100-400 nm) and IR radiation (700-2500 nm). Understanding the spectrum of solar radiation is crucial for designing and optimizing solar energy systems, such as solar panels and thermal collectors.