It doesn't matter so much now with legalisation, but I cannot help but wonder what impact these high efficiency LED lights would have had on the illegal weed business. A lot of police forces did things like use infrared cameras and electricity usage to find people growing such things, but with these LEDs they could remain more undetected for longer.

But on a more broad note: Indoor farming has real potential, in particular for certain types of crops. Not only do indoor farms use less water (which takes energy to produce and transport), but requires less or no pesticides, can be grown out of season, and you're less subject of good/bad weather patterns.

I don't think we'll see this type of thing for inexpensive crops that use up a lot of land (e.g. corn) but we might be more expensive crops that are fairly land efficient (e.g. nuts, fruits, etc).