you think lenin1917 was talking to you??? he was addressing the OP, your reading stuff that isnt there...
what improvements has sodium seen in the last 20 years?, digital ballasts?... meh... double ended 600/1000w?, 400v?, what was that a 10% improvement... meh...
as for hoods/reflectors they are all shit because they start with a flawed concept... the sodium bulb, a 360 degree point light source. out of all the hoods/reflectors ive used i prefered the growstar.
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i dont care how good a grower you are you are not going to make up for a lack of photons, you are arguing against physics now.
everyone i know who has switched to led from sodium has seen an imediate increase in yields, sure there has been bumps along the way (not with yield) but no one i know would dream of going back...
here is the first par map i found for a 480watt led, mars hydro fce4800, whats wrong with that?, looks pretty typical to me...
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total rubbish, absolute codswallop.
i wouldnt dream of going into sedans thread and telling him his sodiums are crap. but if he came in here in 2021/2022 and started advising the OP to grow vertical with bare sodiums over led id tell him he was tripping and so would 99.9% of everyone else...