Freedom of Choice  precisExcite LED systems can be configured with up to four LED array modules (LAMs). A choice of 19 different wavelengths is available (365, 380, 400, 425, 440, 470, 490, 500, 525, 535, 550, 565, 585, 595, 615, 635, 660, 700, 740, 770 nm).     Long-lifetime LEDs  LEDs have extremely long lifetimes of tens of thousands of hours. This almost eliminates the need to exchange them and greatly reduces running costs and maintenance effort.     Fast On/Off Switching  LEDs can be switched almost instantaneously and offer the advantage that no additional shutters are required.     Less Vibration and Heat  Indirect coupling via the light guide allows remote placement of the unit, thus reducing vibration and heat at the microscope frame.     Standalone Control  The precisExcite light source enables LEDs to be switched on or off individually and used in combination. It also allows LED intensity to be adjusted individually per wavelength from 0 % to 100 % in 1 % increments.     Software Control  USB and ethernet interfaces allow the light source to be integrated seamlessly into the cellSens imaging software, which enables the easy automation of complex multi-dimensional imaging tasks.