Mach Sakai reviews the Thrunite TN40, a long range light that can have an a light throw up tp 1,1141 metres with its output of 4,450 lumens. It uses four CREE XP-L HI LEDS with a lifespan of 20 years and has 6 light modes for the user to choose from. This is waterproof up to 8 metres, meeting IPX-8 standard.