Yes, it can. The AC-DC adapter is compatible with the aforementioned voltage range, and it can handle 50 or 60 Hz input. The one caveat is that it is designed for a US plug, so other plug formats will require an adapter.
Good question! During development, we found that design decisions always involved making tradeoffs between size, flexibility, power, and cost. Increasing the output power increased cost, and so did keeping things compact and keeping the input voltage flexible.
For power supplies of this class (output power, number of outputs, etc.) the Hydra is actually competitively priced.
We have some exciting plans for future designs that will cost a little less, but (of course) the tradeoff is in flexibility and output power.
We plan to ship via USPS Express or Priority Mail International. We regularly ship international packages that weigh under a single pound, and the cost is still between USD 30.00 and 40.00 for most international destinations. The Hydra is even heavier, so we expect the shipping costs to be higher than that. DHL, UPS, and FedEx are even more expensive for international shipping. We haven't found any other lower cost options that are reasonably fast and reliable, and that have at least some tracking capability. But we are open to suggestions!
Don't see the answer to your question? Ask the project creator directly.