A height-adjustable holder for grow LED lights to be attached to a planter box. And aluminum LED profile slots in to the top segment. The bottom piece just clips on to the planter box. It's fairly loose in my case, but once the arc is completed, it holds just fine.
It's fairly unlikely that you'll have the same plant box and/or led profile. I've included the Fusion360 drawing and a STEP export, so it should be fairly easy to modify the holderfor your hardware :)
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The author marked this model as their own original creation.