The Vilber Solo-S and Fusion FX imaging systems can be user-upgraded with Spectra Capsules to provide sensitive fluorescence blot imaging. Up to 7 of these high-powered LED modules (Laser Class II) can be added to a Fusion system as a plug and play upgrade. With a choice of wavelengths from 365 nm up to 780 nm, all common fluorophores are covered including popular RGB and IR/NIR. This plug and play nature allows users to only buy the excitation wavelengths they need for their research, helping budgets and allowing future upgrades when applications change. The Spectra Capsules work in combination with the Vilber hard-coated emission filters to provide exceptional fluorescence sensitivity.