At $99.99 these things are much cheaper per-watt than Enphase units.
NEW ~300w GRID TIE INVERTER 12v/110v ?solar panel? - eBay (item 170440750792 end time Feb-08-10 20:35:19 PST)
For the price of a single Enphase, you can get two of these units.
They would seem to have a lot of the advantages(MPPT) of the Enphase units, but limited by not being water proof.
I couldn't see spending $199.99 on one of their 600w inverters,
since the 300w unit seems to be the perfect match for big 230w PV panel.
Link to China site and 230v units
I'll bet people who are running off-the-grid systems could use these 300w
units to grow their system if their big inverter is already near max.
Anyone seen these being deployed in North America?
I would be interested to know if the quality is ok..