My experience with leds' is that It keeps the plants short and stocky. sometimes to short, with the internodes almost next to each other. Sometimes too tight and crowded.
I raised the lights slightly so that they would get a little stretch between nodes.
I also did supper cropping and LST. so my vegging is longer than normal.
Yours looks great, pretty much how leds keep em tight.
Are they under the one light or is there two? I think I see a second light.
You could move them closer to each other and put lights closer. With leds the light is best directly underneath them.
Put those six buckets all close together, move your lights in towards each other a bit. tilt the lights slightly in towards middle.
This way the light paths will cross each other in a V type pattern \\\ /// kinda like that.
.........................................................................................side view @@@ 3 buckets 2 wide.