Hi in my new flat's hallway I have five GU5.3 MR16, 12v, 50w halogen, bulbs. The are controlled by a Varilight touch and remote control dimmer, the basic V-DIM model. I have some problems, the lights go on or off when switching other lights in the flat and some times they do not switch off completely but they have a weak light. I now tried to use Philips LED Master dimmable 7w MR16 spotlights but I have again problems to control the lights with the dimmer. Any ideas what can be the problem? Would it help if I instal the top model of Varilight, the V-PRO dimmer switch?