Needing a quick fix to avoid chasing out walls and ceiling...

Does anyone know of a wireless light switch setup that:

- looks like a normal lightswitch (or fits into an existing one)
- does not have a bulky receiver/transformer at the light, ideally a
device that plugs into a bayonet which the bulb can plug into in turn

I only want to control one light, on/off so ideally want a pure RF
switch rather than a set of 3 X10 products.

any help gratefully received

Thanks a lot,
Andrew