i don't have any experience with their products, but have you heard of
http://www.lumigrow.com/
^ Those fixtures at Lumigrow look nice!
Orchids Limited (Orchidweb.com) has some very new LED bulbs and panels listed on their website under "Equipment" which are quite intriguing as well. The panels are pricey but I strongly suspect they put out a helluva lot more light than most brands of LED lights which you will find anywhere else on the market today. HaightSolidState.com seems to be getting a lot of attention these days as well, and finally, ChameleonGrowSystems.com is incorporating those new high tech microwave-activated plasma capsules (about the size of a tictac) into their new lighting systems. Amazing stuff! Quite expensive too! :rollhappy:
I've long wanted to switch over to LED, but to date I have not done so. I currently use CMH lighting (ceramic metal halide) from Philips (their Retro-White bulbs) which is true full spectrum. My plants seem to love it. My electric costs are high too!
oke: I will switch to LED or Plasma once I find a product I am convinced will provide my orchids with the right kind of light and enough of it.
Those UFO Tri-band fixtures, IMHO, have a spectrum which is best-suited for growing illegal substances. They are very heavy on the red end of the spectrum -- even the Tri-band fixtures along with the newer ones with five and six bands. They all have a ton of red. I also don't know how big of an area you would actually be able to light for growing orchids if you are using a UFO as your only source of light. It would depend, I guess, on the light requirements of your plants. Vandas are probably not going to bloom using only the UFO fixture. Some of the Paphs might. The UFO might work well as supplemental lighting next to a north window.
In the past I've used banks of six 54 watt T5 HO fluorescent tubes (tube length = 45.8 inches/116.332 centimeters) in a variety of colors to provide the wavelengths needed and had good results with my Neofinetia falcata plants. There was a distance of about 12 inches between the tops of the plants and the surface of the tubes (give or take 2 or 3 inches depending on how high each plant was propped). Neos take a lot of light! The T5s were their sole source. T5s do put out quite a bit of heat even though they are advertised otherwise. I guess all things are relative.