hi frenz, for yr info, to differentiate between genuine Corian or LG solid surface kitchen top with other cheaper kitchen worktop is that Corian/ LG solid surface kitchen worktop comes with a certificate verifying it's genuinity & warranty
that's rite... there's only one alternative for such addition of lights with several switch control.. the only tedious/ costly way is to get someone to conceal the new wires into the wall.. which is a very dusty process.. n if u dun mind.. i do have someone who can to do it 4 u... the price depends on the distance of the wire that need to be conceal...