Dorcy 41-4320 Pro 470-Lumen LED High CRI and UV Tilting Headlamp • Multimode headlamp with LED, CRI (Color Rendering Index), and UV modes ;• 470 lumens on high,135 lumens on medium, and 50 on CRI mode ;• Up to 6 hour run time on high, 13 hours on medium, and 20 on CRI ;• Tilting headlamp ;• Includes headstrap and batteries;