Servus,
on principle it is correct. The more photons unfire towards the plant,, the bigger it will yields. But! There is a Limit what the Plants can absorb. Radiation higher than this Limit will cause massive damage. The new LEDs, doesn't matter which Brand, are very strong. U'll have to find ur sweetspot for your conditions onsite. To give U one example. I'm using Sanlights Q5W... I start a run at 60cm distance with 60% Power. I never go higher than 60% during veg. Just because it isn't necessary. Hope this helps a Bit. Good Luck 🤞