The 9280 can power it easily; it's capable of supplying somewhere around 1000 watts. You would need appropriate wiring and fusing, 6 gauge or so wire. Most RV fuse panels wouldn't be able to have such a circuit, so it probably would require a dedicated connection at the battery or converter. That is assuming it's anywhere near the claimed 500W,...
Heat could be somewhat of a concern but it is spread out sufficiently that a bit of care and common sense should suffice to prevent trouble, assuming the light isn't dangerous by design.
I think this is far too bright for what you're intending, though. Also, as GordonThree says, the quality of the light will be pretty crummy. A halogen work light might be a reasonable and not too expensive alternative, though they do run hot so mounting or positioning should be done with care.
