Hi Jack,

I believe you can do what you want if you make the light's intensity 0% to begin and then make it 100% where you want it to "hit" him.

Break the spline at the frame before the "hit" so the light will stay at 0% (off)  until the "hit."

cheers,
dr geep
;=]

Remember ... "With Poser, all things are possible, and poseable!"

cheers,

dr geep ... :o]

edited 10/5/2019