I am thinking of fitting a 55w? floodlight as a reversing light on the Brumby to supplement the somewhat average factory lighting

I am planning on wiring things so once I am in reverse I press a momentary toggle SW and the lights come on, but next time I use reverse the do not until triggered by the toggle SW. The reason for this is I do not want to have them come on in traffic where they would attract 'unwanted' attention

Anyway, I am trying to find a suitable light to stick on the back. Keeping in mind it has the Ag-quip black steel rear bumper and step, I am looking for something that does not attract attention, will not interfere with the tailgate or numberplate visibility.