Rockland, MA. (June 2, 2014) –  The new Lumen 300-LED from Prior Scientific is the latest product in Prior’s ever-expanding microscopy illumination product line. The unit is specifically designed to offer broad-spectrum LED illumination for fluorescence applications. Fitting directly to most microscopes, the system is simple to install and use. Controlled by a manual keypad controller, the Lumen 300-LED offers instant on/off operation via TTL, manual 0-100% intensity control in 1% increments and on/off control for each LED. An optional liquid light guide is available when there is a need to keep the illumination source remote from the microscope. Providing 25,000+ hours of bulb life, the Lumen 300-LED is an environmentally friendly illumination system that requires no special disposal regulations.