I have power already installed in my garden (part p covered) and have also purchased a Velda 4-way socket ( http://www.velda.com/L02p4000.php?id=100473 ) that allows switching lights, pumps etc on and off remotely. One of the sockets has a dimming function that I would like to make use of for adding 2 spotlights to my garden, does anyone know the best way to approach this? are there IP rated dimmable lights or would I need a dimmable transformer then connect the lights to this? Any help / product suggestions much appreciated - Thanks