Why does every question about lighting turn into a mathematical debate on nonsensical lighting formulas and other stupid shit!!!!!
Because many growers are not focused on the concept of gardening and instead like shiny things they can brag about. My lights better than yours. I use the latest and greatest twenty different bottle of nutes. I'm growing the latest Great Pumpkin Silver Pineapple Dingleberry Haze and I paid $30 a seed for it!
That's just the way it is. It's that way with everything. Some people focus on the task while others spend their time playing with things to complete the task.
My task is to grow weed, make crosses, make seeds, etc.. And that's what I'm doing. If others want to play with diodes, heat sinks, bottles with shiny labels they are free to do so and I don't care. I'm going to do my own thing. In the end all I care about is what matters to me and it isn't what kind of light I'm using. All that matters to me is that I enjoy what I'm doing and I do.
So everyone just needs to chill out. Take a bong hit. And grow some killer weed.