I'd read into it mate, as for the sake of adding another LED that draws say only 100w from the wall (I have two of those. And about to upgrade to a bit more power, not much though) it will be very cheap to run still and could make the world of difference in terms of quality, dense-ness of your buds and more importantly the amount of frost. My first auto was a Walter White under my two 100w lights (claim to be 225w each) and the amount of frost was better than any photoperiods I'd done under HPS!
Some kind of supplement - especially when in flower (as that plant looks amazing right now) will make a MASSIVE difference and I can guarantee you would not be disappointed.
Check out Viparspectra 225w UFO led. Only draws 100w. Not the best light in the world, but for the 45quid they ask and the running costs I can say the results are great especially.to the top of a canopy