Designed for maximum illumination, with a wide C4 LED beam, this headlight features Ten-Tap programming with three modes of light: High/Medium/Low, High only, and Low/Medium/High. Its solid state power regulation also provides maximum light output throughout battery life, while its 90 degree celsius tilting head reduces neck fatigue. Plus it's manufactured tough, thanks to anodized aluminum construction. Powered by two 3V CR123A lithium batteries (included). IPX4 water resistant and impact resistant to 2 m. Includes rubber helmet and adjustable elastic head straps. 1 3/16"H x 3 11/16"W x 2 5/8"D. Black.