Growing with LED lights

[Aceetobe]

Unfortunately, LED isn't a searchable term, so I'll include the term diode in here so its findable.

I know the startup costs of LEDs are ginormous, but it looks like they are coming down.

I live in San Diego, and am mostly an outdoor grower. However, I have a basement (a rarity for California), which holds at about 65 all year round. I was thinking I could set up a little "tent", and grow some of the cooler more humid loving orchids. This would be about 5x5 area or so.

Now if you take one of these indoor tents and seal it up, all of a sudden of course the heat is going to increase. Toss in the lights, and that 65 becomes more like 80. After doing some research, it appears that the amount of heat generated by the LEDs is negligible, so I was wondering if any of the setups had been used, and whether or not they really put out as much light as they say they do.