The PolyStylus is an ultra slim, ultra tough fiberglass penlight that fits in your pocket so you can take it with you wherever you go. High intensity 5mm LED, impervious to shock with a 100,000 hour lifetime. Interchangeable colored LED modules - Available in green (527nm) or white. Light output: white - 162 candela peak beam intensity, green - 63 candela peak beam intensity, 4.5 lumens. Color coordinated parabolic reflector produces a concentrated beam with optimum perpheral illumination. Runs up to 24 hours. IPX4 Rated for water resistant operation. O-ring sealed polycarbonate lens. Available in black with white and green LED modules. Serialized for positive identification. Limited lifetime warranty. Powered by 3 "AAAA" alkaline batteries. Integral pocket clip. Tailswitch designed for one-handed momentary or constant "on" operation. Design tested for long life; verified at 100k+ actuations. Unique non-conductive fiberglass body