okay so it has a setting for hour and half hour thats how often you want to set the ramp period. if you set it for an hour you will be able to set percentages every hour 1,2,3,4 o'clock (every hour)
if you set it every half hour it lets you setup ramp settings every half hour 1,1:30,2,2:30,3,3:30 etc. (every half hour)
i have the photon 48s and my time period is from 2pm to 2 am with half hour increments...
it starts out with 1%b 0%w at 2
than maybe 2% b 0%w at 2:30
than maybe 10% b 0%w till 3
so on and so forth.
maybe 1-2 hours in the middle of the day or when I'm home i have the lights at their brightest lets call it 60%b and 35%w i don't keep it super bright forever than i ramp back down.
I don't have mine setup at the moment because i am starting my 265 but i know there are a ton of posts in regards to %'s
These lights are GREAT you are going to love them. Just start them off at a lower setting and then slowly ramp them up
any other questions feel free to ask!