@Corgy ... no clue why you would say such a thing.
5 years growing with LED, 6 different brands, GN hands down gets me better results consistently.
And since HS1, it's NOT another chinese rebrand or QC central. Is it 100% legit UK manufacture.
Lets not forget there is also opinion bait, and bias bate. All sorts of "baits". Just ask D.Trump.
Master is my favourite.