Help calibrating my XPS 15?

[Nosenuggets45]

I just ordered a Spyder3Express which I plan to use with the Color Eyes software. I understand the process of RGB calibration, 2.2 gamma, and 6500k temperature (for sRGB), but how do I go about setting the backlight of my display? Will the software help me know how to set it or am I missing something?

Thanks!