The Fenix TK41 features a XM-L LED that puts out 800 lumens on the highest brightness. The light is powered by 8 AA batteries and has two switches, one to turn the light on and off and the other to switch modes.

• Uses Cree XM-L LED with a lifespan of 50000 hours
• Uses eight 1.5V AA (Ni-MH, Alkaline) batteries
• 213.6mm (Length) x 40mm (Diameter) x 62.5mm(Head)
• 318.5-gram weight (excluding batteries)
• Digitally regulated output - maintains constant brightness
• Reverse polarity protection, to protect from improper battery installation
• Dual switch system in the front, easy operation
• Made of durable aircraft-grade aluminum
• Premium Type III hard-anodized anti-abrasive finish
• Toughened ultra-clear glass lens with anti-reflective coating