The D4 pump I measured to be drawing ~17-20W, as opposed to the 12-15W that Laing says it does. This was verified with a multimeter monitoring the current draw and voltage supplied.
The pump is indeed sucking down more power, but giving greater performance as a result, at 12V than what Laing specify. The difference is large enough that I suspect a revision change as the Laing engineer I spoke to mentioned that they had been continually refining the pumps.
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