A Scientific Multiwavelength LED Source combines high-brightness LEDs into a single fiber or light guide. It offers a wide range of wavelengths from Deep UV to SWIR. The system is highly configurable, allowing for either narrowband or broadband output, and is tailored to specific scientific needs. Customization is facilitated through the Prizmatix Spectra-Viewer tool, with control options such as USB, TTL, and Ain, making it adaptable for diverse applications.