welcome to the site bader.

first bbq yeah? or rather first tank just so you know what im on about.

if you wish to have a different effect & you have seperate timers, then you can turn your actinics on slightly before & slightly after your main lights. As phursty mentioned, on when your main are on.

they are secondard to your main lights & lets be honest, if only to make sh^t look pretty cool.

dont worry to much about the spelling, mine has its good & bad days also.
if your worried about it, there is a 'abc' above a blue tick in the right hand window on the text application. with the download of a small patch, you can spell check your posts if you wish!