I'm a big fan of LED's, Mars Hydro does have a lower tier and an upper tier n their products.
They are still good products designed for growing in mind.
Hard to tell what model you have there, but look for its PPFD or Par maps online and confirm what your ideal hanging height should be.
This will be what determiners part of your grow. as well as environment and nutrients.
In general though more watts in, equals more buds out if done right.
there are ceilings you will hit with 100w vs 300w vs 600w
www.youtube.com/watch
this guy on youtube does a lot of great video for LED's and this one is HID HPS vs LCD.
Best Of Luck