If it's value you seek then the light is cheap...I'm still struggling to see why someone would hate on it. They have more evidence and available information to back their product than any other Led light company hands down. Their R/D is nothing short of amazing. I did at least 50 hours of research and reading before I finally struggled to let go of enough money to buy the light but it's an incredible product no mater what you think of the price. That's like saying a Ferrari is a piece of shit because you can't afford one.
Not sure why you think $1800 for a 750w led is cheap and from what I have seen online people are pulling less than a gram per watt.
What are you pulling from yours?
What R and D, they are using the same tech that the Chinese have been pumping out for years and using the same spiel, they even claim that COBs are inferior because they don't use lenses which diminishes the light? They claim efficiency doesn't matter. Because their numbers are embarrassing.
They wont even disclose what diodes are used "because its not in their best interest" meaning if they did tell us we would know how cheap they are and how much they mark up their lights.
Everything they say on their website is just vague or made up opinion.
They are the most expensive LED on the market yet average performance so why wouldn't people slate them.
Just because a light grows weed doesn't make it worth the money they are charging.
Again, show us what you have done with yours, what are you pulling out of what space?