John, you are absolutely correct, when I went back and re measured it it was 0.2A, so cunsumption is really 2.4W at 12V.
Yes it is bright, I tested it in a room about 2m by 3m, with a white ceiling, I used it as an up light from the top of a bookcase, and the reflected light off the ceiling was enough to read comfortable across the room.
I would say you could light the living and sleeping space in a 20ft van with 2 or 3 units used in a similar manner (pointing up), thus a total power drain of about 0.6A.
I realise that it is advertised as 5W, and draws 2.4W, but its light output is about equivalent to a 65W globe in the old incandescent style.
Deals Extreme are great for gadgets - recently purchased three 12v chargers for our computers - only needed two, but got a discount for buying three, with free postage - arrived in about two weeks - work a treat - the three were $35. One thing though, the supplied connection to the computer socket didn't fit my HP, but I swapped mine with Yeoelven, and that works well.
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jules "Love is good for the human being!!" (Ben, aged 10)