use the resulting internode length to adjust light intensity -- either adjust distance fromcanopy or use dimmer. More wasteful to adjust height, but it comes with beneifts, too. Greater penetration into canopy if you have a stronger source and a little more distance -- this is due to ramifications of inverse square law of light distribution.
1/x^2 where X is proportion of orignal distance. so if half the distance 1/.5^2 = 4x stronger if half the distance.
or... 1/2^2 = 1/4th of the power at twice the distance. IF you have a greater distance, you'll get greater power deeper into canopy.
this is based on a single point source for simplicity. We have many diodes, so that does matter and does reduce this effect in central area under light, but still a big difference, nonetheless.
take 24" vs 12" distance from canopy and compare what the intensity is 12" deep. the 12" distnace is 1/4th strength at 12" deep. Now for the 24" it's only 1.5x the original distance to guesstimate 12" deep. so 1/1.5^2 = 44%.... 44% vs 25% 12" deep. Yes, the 24" height and power at that distance will be more wasteful if oyu only look at the canopy, but if oyu consider multiple levels it's clear that greater distance, a little less efficacy, can definitely result in bigger yields in some contexts... not all.. this is complicated. extremes are not good in either direction.