LED setup, help

A question from a fellow grower:

I’m looking to make my own led grow like and I’m unsure to use 3w, 5w or 10w led bulbs to make a 200 or 300 watt system I know most grow systems use 3w or 5w leds I have heard 10w leds produce to much light and may burn the plant I would appreciate your opinion thank you very much for your help