The Mini Pocket Light clips to helmets, hats, or clothing for hands free lighting while doing repairs, maintenance, walking in the dark or diving. Brightest 2AAA light in its class Small enough for a key ring Hat clip and key ring included Optional high brightness red LED (.075 watts), for protecting night vision, provides 24 hour burn time Waterproof to 10 meters NOTE: Light is not certified for use with Lithium batteries in hazardous locations. Use only listed Alkaline cells. Specifications: BRIGHTNESS: 12 Lumens LAMP: 1.13 watt high brightness xenon filled lamp BURN TIME: 1.5-2 (Alkaline) Hours; 2.5-3 (Lithium) Hours BATTERIES: 2 AAA Alkaline/LR03; 2 AAA Lithium/L92 SIZE: 2.9 L x 1.1 W x 0.74 D inches WEIGHT: 1.3 oz (Alkaline); 1.0 oz (Lithium)