Fenix tk41c flashlight 1000 lumens fenix tk41c is an 8 x aa battery powered torch with a 1000 lumen 480m main beam plus auxiliary red and blue leds two switches control the tk41c the right switch operating the main beam whilst the left operates the redgreen leds the switches also feature a lock out function to prevent accidental operation tk41cs four widely spaced constant lighting levels offer a balance of output and run time to suit your task from a 1000 lumen beam for 2 hrs 30 m