Compact, water resistant, durable construction withstands tough work environments and the red body color is easy to distinguish among tools. LED has a 30,000 hour lifetime so it never needs replaced. Proprietary Micro Optical System (MOS) for optimized output (super bright beam) and run time. Shock proof - drop test verified above the industry of 6 feet. Unbreakable pocket clip and ring for easy storage/attachment Stylus Pro LED penlight features a super bright, high flux, 1/2 watt LED. Corrosion proof construction with an unbreakable polycarbonate lens and pocket clip. Rubber push button tail cap on-off switching. Provides up to 24 lumens for up to 7.5 hours. Red body with White LED.