It will be difficult to impossible to find a commercial LED light for your needs at the moment. You need to pick one that covers multiple wavelengths and includes white to hit the "micro-nutrient wavelengths" or add a CFL. You will have to pay an absurd price for it and it will not perform as desired.

Unfortunately, at the moment, the only really viable LED grow lights for full production of food (or cannabis) are homemade. LED grow light vendors lie - period. Currently, LED grow lights are the sleaziest business around...

For trees, unless you're doing bonsai, ignore LED. You might as well just get a CMH and be done with it.

Currently, LED grow lights are the sleaziest business around...

Seems you have an agenda

Excuse my ignorance but what is CMH? Commercial Metal Halide?

CMH is ceramic metal halide.

Who has an agenda?

I think he believes I have an agenda. My responses are just a normal human response to relentless spamming of gardening forums by what seems like predominately LED vendors lately. No, I don't sell anything or own stock in anything. My opinions are just that - and based on my knowledge and experience.

There's no reason you couldn't grow a lemon tree with LED's. But once again, I honestly have yet to see a commercial light that could do it.