For most high-quality flashlights, the most common material used for the body is aluminum alloy. This is because of its strength, ability to transmit heat and conduct electricity, all whilst having a low density. Some flashlights are made from ‘aerospace-grade aluminum’.The best long range torch is Imalent SR32 with 120,000 lumens output and a maximum beam distance of 2080 meters. The SR32 Features 32 CREE XHP50.The lumen output of the best police flashlights can vary and most top-rated police flashlights would be 1000 lumens or above. If an officer is looking for a small rechargeable police flashlight such as a penlight 400 lumens would be sufficient.