Quick Tip: Strobes, like a continuous light source, correspond to changes in aperture settings. For example, if you increase your aperture from f/5.6 to f/11, you must increase your strobe output by two stops to maintain a consistent exposure.When working in direct sunlight or nearly dark sets, choose a 1000 w/s strobe over a 500 w/s. You will relish in the extra power. If a strobe is too powerful at its lowest setting, you can further decrease its needed strength by using neutral-density gels. In this particular photograph we used 1000 w. strobe at highest power to overpower the bright outdoor sun.