UK Vizion 3AAA eLed Headlamp Dive Light - Underwater Kinetics Scuba Dive Light BRIGHTNESS: 42 high 19 low Lumens LAMP: High Intensity LED BURNTIME: 5 hours (high) / 12 hours (low) BATTERIES: 3AAA Alkaline, 3AAA Lithium SIZE: 2.9 L x 1.47 W x 1.82 D inches