</font><font color="blue" class="small">( And here's how they look on the ROPS. I'm considering turning them 90 degrees, then each magnet could hold two lights, one forward and one back. )</font>
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Your attachment shows the light mounted to the under side of the top cross bar of the Rops.
Most people attach the light there or on the top of the bar.
My plan is attach the magnets to the rear of this bar.