This present disclosure is related to the field of 1–5-fluoro-4-imino-3-methyl-3,4-dihydropyrimidin-2-ones and their derivatives and to the use of these compounds as fungicides. The flashlight includes a bottom cap with a magnetically actuated switch. The side wall defines a through-hole therein. Thus, whilst contact portions 23, 33 are in vibrational coupling contact with the aperture 9, coolant airflow through the paths 22, 32 enables cooling of the seal 7, 21, 31 and areas of the structure 3 about the aperture 9. At least a portion of each list is then presented on the channel-viewing GUI.