A nitride-based semiconductor light-emitting device and a manufacturing method thereof are provided. The upper legs and lower legs of the split portions are attached to adjustable straps such that the belt tension is distributed to both the upper and lower portions to facilitate a snug fit to the user. A second current sink is also provided in electrical communication with the current node and in parallel with the first current sink, also configured to draw a second current through the current node in response to a respective control signal.