Your plan looks good with vegging longer and scrogging.. The light you have propably has 120 1w diodes that use 80 watts in total. So it´s not that powerful. And its old technology. I´d get another light next to that one that uses 3w diodes at least and has good lenses, i´d prefer 90 degree ones.
If you aren´t looking to make a big investment, you might think of getting a couple of cfls. Biltema has 30w esls for 3 euros. Theyre not quite the best colour temperature at 4400K but they still work fine.
Happy growing!
Your plan looks good with vegging longer and scrogging.. The light you have propably has 120 1w diodes that use 80 watts in total. So it´s not that powerful. And its old technology. I´d get another light next to that one that uses 3w diodes at least and has good lenses, i´d prefer 90 degree ones.