The LED F1 light source manufactured by Photonic Optische Geräte GmbH & Co. KG is DC-powered, resulting in ripple- and flicker-free operation. It generates a constant color temperature of ∼5600 K and offers a service life from 20,000 to 50,000 h, depending upon the brightness at which it is operated. The on/off switch maintains the brightness level last set. Because it was designed without a ventilator, operation is silent and vibration-free, and it generates no air turbulence. Its robust metal housing renders it suitable for use in machine vision applications, and its compact design enables its use in confined spaces.