Editorial Reviews:
Product Description 4.09 in. black computer machined aluminum with anodized finish and knurled grip. Has three 100,000 hour life time high-intensity LEDs and up to 9.5 hours of runtime with 3 LEDs. Takes one 3V lithium battery, included. Weighs 3.95 ounces. Includes lanyard. Push button switch for constant on/off.
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