Run time of up to 60 continuous hours. Finely crafted, ultra-slim penlight features a flexible cable extension, allowing for use in the tightest of spots and a hi-intensity LED "solid state lamp" which has a 100,000 hour lifetime and emits bright white light". Waterproof case is quality constructed of 6000-series tempered aircraft aluminum with black anodized finish. Copper core cable extension is shielded and insulated with PVC. Non-slip knurled grip. Pocket clip. Momentary and constant-on switches. Individually serialized with lifetime manufacturer's warranty. (3) AAAA alkaline batteries included.