I think we'll continue to encounter delays in research and development on these lights. Unless the light companies are owned by or partnered up with experienced or professional coral farmers, they are going to run into a lot of other problems that aren't related to just the lights. I'd also be curious as to how far the light spectrum from the LEDs could penetrate into deeper tanks. I could see LED lights working well first in the large shallow coral display tanks at the LFS and coral growers. This could bring down costs and possibly coral prices. But as with the flourescent bulbs that replaced the incandescent bulbs for "around the house use", as soon as that big wave happened, and the consumer energy consumption fell, they raised the energy prices. Last January, I replaced 85% of the incandescent bulbs in the house with flourescent (not the dimmer controlled ones). That energy bill was just about the same as the previous month due to the 20% hike in energy rates.