It sounds like you might be new to all of them, so consider that it's all hear-say at this point.
While you're in that mode, take a minute to google "gu10 reef" to see examples of a
real low end light growing plenty of corals.
I've used one of these DIY GU10 fixtures (as well as some commercial lights) for 5 years or so.
Current's lights are very definitely an upgrade from my GU10's plus you get a fully featured controller with it.
Last, check out my signature.....the quote is for folks in your position.
Have some confidence and grow some corals!!!