Fiber optics kit for a housing which directly accepts bear end of Optical D Cable Type L and also usable to connect second strobe. Four different length products are available; Optical D Cable SS Type L (free length approx. 24cm/9in), Optical D Cable Type L (free length approx. 43cm/17in), Optical D Cable L Type L (free length approx. 68cm/27in) and Optical D Cable LL Type L (free length approx. 110cm/43in). INON optical cable products use multicore optical fiber cable made from more than 200 single fibers with enormous characteristic of minimum bending curvature 2mm to provide super durability and rigid reliability to trigger an external strobe in severe underwater together.