DIV18 multi-function dive mask flashlight, use CREE latest XM-L2(U4) with max output 630 lumens. This flashlight can be powered by 1*14500 lithium battery or 1 *AA size dry battery. It is sealed and protected with 3 O-rings and constructed with toughened glass lens which allows this light to be taken underwater to a maximum depth of 200m. It can light at different angles by assembled with Nitesun MX05 flashlight bracket which can rotate 360 angles. DIV18 multi-function light can be widely used from diving, cycling, outdoors to EDC.