SEA&SEA SS-70015 YS-17 Lightning Package for Underwater Digital Cameras YS-17 Underwater Strobe with Beam Angle of 70 x 53, AND Guide # 14 Includes Fiber Optic cord to operate with nearly ALL underwater cameras Grip Stay easily mounts to most ANY camera with a fixing bolt Essential accessory for those wanting to take exceptional underwater photographs More specifications can be seen at www.seaandsea.com