Excelitas X-Cite XYLIS LED illumination system

The X-Cite XYLIS from Excelitas is a white light LED illumination system for advanced fluorescence microscopy applications and rivals traditional arc lamps for brightness, making it suitable for both compound and stereomicroscopes. Incorporating LaserLED Hybrid Drive technology to overcome the LED green gap, and featuring a broad DAPI to Cy7 spectral range, the product makes it possible to enjoy the benefits of LEDs without compromising on flexibility or performance.

Delivering light through a light guide alone or with a choice of more than a dozen microscope adapters, the device can be installed on most new imaging systems or used to retrofit the microscopes labs have depended on for years. Two models are available with a choice of UV wavelengths — 360–770 or 380–770 nm — meaning laboratories may choose the one that works with their preferred or existing DAPI filter sets. Control options are built in to every system, including intuitive fingertip control with speedDIAL, hands-free operation with a foot pedal, and USB and TTL inputs for automated applications.

The product provides an environmentally friendly replacement for lamp systems and has been tried and tested on demanding microscopy applications including stereomicroscopy and FISH. The option to turn off the UV part of the spectrum will be welcomed by stereomicroscope users who want to preserve the viability of their samples.