I have that light. I don't remember there being different modes, just a dimmer.
Regardless, I want to warn you. It's a powerful light. I have only grown two hybrid strains with it, but if I keep the light even slightly closer than 24" from the top of my canopy, I have light problems (at 100%). Even at 70% I had to raise it farther than suggested. Following manufacturer directions didn't work for me.
Anyway, looked like it was new out the box, so thought I'd chime in.