Hi, I've seen 'energy saving devices' on ebay, like the one below. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=320112306703&ssPageName=MERC_VIC_RSCC_Pr4_PcY_BIN_Stores_IT&refitem=320099585047&itemcount=4&refwidgetloc=closed_view_item&usedrule1=StoreCatToStoreCat&refwidgettype=cross_promot_widget Any one know if these actually work? Thank-you, Stacy