Fenix 3 Level 100 Lumen LED Penlight Utilizes Cree XP-E LED (R2) provides three levels of output to meet your daily demands Waterproof, Type III hard anodized anti-abrasive finish with a toughened ultra clear glass lens Stainless steel head, tail, and pocket clip provide both a great appearance and durability Just 6 inches long and 4 ounces operating on very easy to find AAA batteries (NOT INCLUDED) Virtually indestructible CREE light emitting diode (LED) has no filament to burn out or break