Uhm... No, it was a huge transformer i once tried to substitute with a 
switching PS.
The switching PS blew after few months of operation: the load is really 
heavy when you switch on the lamp: the filtering capacitors were soon 
damaged.
I think linear is better in this case.

Thanks!

Alessandro

> It sounds like you've got a "wall wart" transformer running the lamp.
> These are well known for their inefficiency and standby power
> requirements. As such, they are about to be outlawed in California. I
> think the simplest solution to the problem is to buy a new high efficiency
> wall wart, which is generally a wall mounted switching power supply. These
> meet the new efficiency and standby power requirements.

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