Armytek Tiara A1 Pro 370 Lumens Compact Lightweight Headlight Headlamp with AA Battery and Lumen Tactical AA Battery Box - Use 1x AA Super bright 370 lumens headlamp powered with a common available AA battery Compact and lightweight (3.43" long 0.9" diameter; 2 oz excluding battery) Easy Operation with 6 output: 370 lm (30min); 210 lm (1h10min), 70 lm (3h), 10 lm (25h), 1.7 lm (200h), 0.15 lm (90d) Broad visibility - 120 wide beam & 180 continous tilting Listing includes Headlamp, headband, 1xAA battery, Lumen Tactical 4xAA battery box, clip