High flow low wattage seems like only DC pumps fit the bill currently.
If money is not a concern can get Abyzz (German products so built to last).
But last how long we do not know yet ... any user of Abyzz pump encounter any failure so far?
Else can get Made in China brands like Jebao, Reef Octopus Diablo but reliability is a question.
For the 1st generation Waveline, Jebao, Diablo DC pumps, we have seen failures within months of usage.
The 2nd generation DC pumps are on trial now since they were launched not too long ago... but the
supposingly "improved" 2nd generation Waveline DC pumps are not even not sale in Singapore(though Waveline DC6000 are
available for exchange for those broken down DC5000 within warranty)!
Cost wise if you buy 1 Abyzz A200, you can buy 12 Jebao DC12000..
Suppose a China made DC pump can last 6 months and they improve their design and reliability along the way.. you probably
can use those China made pumps for more than 6 years if paying the same price for 1 Abyzz.
However the Abyzz can be used as a wavemaker, this function is not available in those China made DC pumps.