Continuing the sucess of our popular focusable CF-250, this powerful big brother delivers a stunning 600 lumens brightness with a changeable focus, from a wide and even light beam at 28 degree to a concentrated hot spot at 8 degree. Twist the front to change the focus continuously. Magnetic swivel switch on the bottom, one hand operation. The solid aluminium body can withstand the most rugged diving situation. Colour temperature: 6 500K (sun white light output); buyoancy in water: 282gr (including batteries); weight in air: 564gr (including batteries); diameter: 59mm; lenght: 190,5mm; maximum depth: 100m; burn time: 100 min; batteries: 3 x AAA 1.5V