My car is white, which is great most of the time because it hides any swirls really well. This becomes a problem though when polishing the car because it becomes hard to tell how effective my polishing is. Under most lighting it will look great, but then sometimes in the sun just right I can see some swirls. My question is, what kind of lighting do you use to show defects in white paint? I don't want to resort to polishing in direct sunlight because a) it's hard to control what part of the car the light falls on, and b) polishing in direct sun can have it's own side effects on the products. Are the lights like the Brinkmann really that effective on white, or do you pros have some tips of your own for when you're working on light-colored vehicles? Thanks in advance for any feedback.