whincup wrote:
outta curiosity, is there any difference between circle and square spotlights other than the shape? as in, does one shine further or wider than the other?
In my experience - no - choose whatever fits in the space available or looks good with the shape of your headlights.
Further and/or wider is more about the design and quality of the optics (lens & reflector) than anything else - larger is generally better - but a properly designed 150mm lamp will outperform a poorly designed 240mm one.