Review on Starlights SL-2000 Smart Light 2000: Efficient Round 12-Volt Exterior Motion Light in White by Chris Wheeler

I received my SL2000 on Friday, took it out of the box on Saturday. The instructions say to connect it to use 2 white wires from the back of the light, 1 white with a positive marking and 1 white with a negative marking. Actually there are three wires on the back of the light 1 white, 1 yellow and 1 black. There are no polarity or function markings on the wires. I need help with the wiring. The light looks good but the instructions I received are totally inconsistent with the lamp I received, despite being labeled as the correct booklet.