Opinions please 600w red spectrum for flowering

Looking for ur opinions on what is the best 600w red spuctrum lamp on the market ?? For flowering purposes only ..experienced growers opinions please ?

I love the reviews on Amazon! Search for a 600w HPS lamp at like 2,200K and see what's actually working best for folks. RIU is great too but the work is already done for you w/ reviews

I bought the most expensive of them and the cheapest of them. The expensive one lasted longer but I would buy a cheap bulb and change after 2 grows. Your results will be just fine. I don't know a single grower buying "high end" bulbs any more. I think we all just fall for that when we start out.