Features and Benefits: Compact, waterproof, durable construction withstands tough work environmentsLED has a 30,000 hour run time and never needs replacedProprietary Micro Optical System (MOS) for optimized output (Super bright beam) and run timeShock - proof; drop test verified above the industry of 6 feetUnbreakable pocket clip and ring for easy storage/attachmentStylus Pro is a super tough, ultra slim pen light featuring a white.5 watt high flux LED that never needs replaced. Provides up to 24 lumens of light for up to 7.5 hours of regulated run time. Corrosion and water resistant machined aluminum construction with easy to use push button tail cap switch. Includes 2 "AA" alkaline batteries and black nylon holster. Blue.