I’m growing in a stealth cabinet (see: The year of making do) and only have a total of 45W in there, and I’m pretty sure I’ve light burned my plants and also caused stunting. Note that the lights produce almost no heat. Any burning was from light intensity.
I’m a noob so I have a lot to learn but my theory is that the excess light causes the plant to deplete nutrients (like calcium) faster than it can replenish. I suspect that with the right nutrition I wouldn’t have seen the burning.
Some people are able to grow with a lot more light intensity than me in small spaces (@Mr.Sparkle comes immediately to mind). So I suspect it’s not so much that the light itself is nuking the plant, but it’s causing some sort of problem in concert with some other issue.