Sharp GP2Y0A21YK0F led stairs light

Hello,

is IR sensor Sharp GP2Y0A21YK0F suitable for triggering automatic led stair lights, which will be controlled with genuino mega 2560?

I will have 15 led (each stair) and one sensor on top and below.

Are these mosfet´s OK for powering and controlling leds and over PMW?

Thank you for answers.