Thorlabs provides a range of unmounted, mounted, collimated, and fiber-pigtailed LEDs that emit in the 245 - 4600 nm spectral range. Our High-Power LEDs for Microscopy, Collimated LEDs, Multi-Channel LED Sources, and Illumination Kits are all designed for microscopy, illumination, and measurement applications. Our cage-compatible diffuse backlight LED includes a diffuser window, which produces a flatter field of illumination ideal for machine vision applications.