The ProPolymer Lux is a safety-rated light that has a long-reaching, bright beam and an ergonomic design for comfortable handling. Its polymer body is water-proof, shock resistant, corrosion-proof and features an unbreakable polycarbonate lens with scratch-resistant coating. The C4 LED bulb has a deep parabolic reflector produces long-range brilliance and smooth uniform beam pattern. The push button tail switch provides one handed momentary or constant operation. Four AA alkaline batteries are included.