(Certified Scuba Instructor at Scuba.com)
Hello Ruben, Thank you for your inquiry. Concerning your question about how deep you can take the Gopro 3D Hero Waterproof Camera System: It has a depth rating to 180 feet or 54 meters. http://www.scuba.com/scuba-gear-535/168218/Gopro-3D-Hero-Waterproof-Camera-System.html
You would need to purchase a separate U/W Video Light like the SeaLife L.E.D. Video Light: http://www.scuba.com/scuba-gear-516/168171/Sealife-L.E.D.-Video-Light.html
Please give us a call if you have any questions or if you would like to place an order: 1-949-221-9300.