This is the Features: Powerful 900 lumen LED dive light using latest CREE XM-L2 T6 LED 14 degree narrow beam angle (10.5 degree underwater) for long range and for pointing out sea life One button operation - Long push (1 sec) to power on/off; short push to cycle through 5 light modes Easily adjust between five light modes - Full power (900 lumens), half power (450 lumens), quarter power (225 lumens), blinking (one second at full power) or emergency SOS signal Color battery indicator Safety pressure release valve relieves internal pressure build up caused by damaged battery Depth tested to 330 feet/100 meters Can be used with two CR123 lithium batteries delivering 60 minutes of burn time at full power or 120 minutes of burn time at half power (batteries sold separately) Available rechargeable 18650 3.6V 3400/3500mAh Li-ion battery with up to 120 minutes burn time at full power Anodized aluminum head and rubber armored polycarbonate body The Sea Dragon Mini 900 Power Kit pairs the Mini 900 Dive Light with both a 2600mAh rechargeable Lithium-ion 18650 battery and a compact USB battery charger, so you have everything you need to power the Sea Dragon 900 and light up your dive.