Underwater Kinetics SL4 eLED MK2 Dive Light - 600LM - Blue for Scuba etc. 424226
ID: 424226. Underwater Kinetics SL4 eLED MK2 Dive Light - 600LM - Blue. The Underwater Kinetics SL4 has been the gold standard for small utilitarian dive lights for decades. Owning a SL4 is owning a piece of scuba diving history.