The Acebeam K60 has been our favorite all time (all around) light for use around our horse farm and property. Before the K60, our favorite was the Fenix TK75. We've also tried the Acebeam K30, X45, X80, K65, Fenix TK35UE and Nitecore TM16GT. On Monday morning the TN40S NW arrived, giving us three days to compare it to our beloved K60's. Here is how the two lights compared (in our opinion). The winner is shown after each category. Battery life (turbo) = TN40s Battery life (generall) = TN40s Best low battery indicator = TN40s Battery carrier overall quality = DRAW Battery carrier attention to detail = K60 Battery carrier springs = TN40s Ease of changing batteries = TN40s Inside machining detail = TN40s Quality of threads = K60 Smoothness of threads = K60 Factory lubrication of threads = K60 Overall esthetics = TN40s Overall attention to detail = TN40s Overall feel of bulid quality = TN40s Overall feel of toughness = TN40s Anodizing = DRAW Matched anodizing on parts = DRAW Knurling quality = TN40s Knurling grippiness = TN40s Bezel ring toughness = TN40s Bezel ring quality = TN40s Bezel o-ring quality = TN40s Toughness of cooling fins = TN40s Quality of lettering = TN40s Aestetics of logos/lettering = TN40s Brightness of lettering = TN40s Tail standing stability = TN40s Functionality of lanyard holes = K60 Strength of lanyard holes = TN40s Strength of tail piece = TN40s Shoulder strap attachment = TN40s Cleanliness of LED’s = TN40s Centering of LED’s = TN40s Cleanliness of reflector = DRAW QC of reflector = K60 QC of centering ring(s) = TN40s Cleanliness of inside glass = K60 Bezel’s ability to protect glass = TN40s Balance in hand = TN40s One handed operation = TN40s Operation with frozen bare hands = TN40s Operation with bare slick hands = TN40s Operation with thick gloves = K60 Simplicity of UI = K60 Overall UI = K60 Beam quality white wall = K60 Beam quality outside = K60 Close distance spill = TN40s Intermediate distance spill = K60 Long distance spill = TN40s Close illumination = K60 Intermediate illumination = K60 Long distance illumination = TN40s Option of NW or CW = TN40s Color temperature = TN40s Tint = TN40s Wow factor 150 meters & closer = K60 Wow factor 150 meters & out = TN40s Overall wow factor of beam = K60 Quality of box and packaging = K60 Includes holster = K60 Quality of included lanyard = TN40s FINAL SCORE Thrunite TN40s 39 wins (and 4 draws) Acebeam K60 19 wins (and 4 draws) Based on the final score, you were probably able to guess that we have a new favorite!