This universal flash for digital cameras is essential for sharp, colorful pictures. Water absorbs the red and yellow light spectrum, and the powerful SeaLife Digital Pro Flash causes the intense colors of coral and fish to "explode". The powerful SeaLife Digital Pro Flash works with all SeaLife and other brands of cameras that have up to 4 pre-flashes. Flexible, rubberized arm for easy aiming and sure grip. Flash has an effective underwater distance range of 2'-8'. Depth rated to 200'. Runs on 4 AA batteries (not included). Comes with flash link optical cable connection, standard mounting knob, and deluxe carry case.