Rising Dragon 4 LED Master Light 2 Wire.
The lights have an OD of 55mm and fits most standard light housings with bayonet twist fitting
The light comes with a 12v AMP lead and a 220mm 2 wire cable that plugs directly in to the bus cable.
This light interconnects with Balboa & Other controllers. All have 2-wires incoming, but some have 4-wires outgoing to other string or slave lights.