Should be good, but not inexpensive. Not paying too much attention to the fantastic claims on that website, I'd say you would need two of them for a 10gal tank, which would set you back about $70 incl shipping.
The fact that they are encapsulated might cut down on their lifespan a bit.
Worth a try if you have the cash. Like with LEDs, you pay for technology that is not commonplace yet. Whether they are better (than T5 for ex) remains to be seen. Remember there might be reasons why the world hasn't shifted to JingHua T2 bulbs yet... :smile: