The samples were marked with a 10 watt q-switched ytterbium fiber laser with 160 mm focal length lens. They were surface etched, to create brightly contrasting marks. The parts were marked at a speed of 10 inches per second, using about 7 watts of power, with a frequency of 20 kHz. The cycles timed for the “Alfex” text, the Clipsal logo and the OZ Lotto logo were 1.83 seconds, 5.45 seconds and 5.22 seconds, respectively.