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No, the rating for dimmers are not straightforward, minimum load is for the lamps should not fall below 1/6 of the min load (in this case 200/6 = 33, with 7 lamps we have 77W so this is ok) Max wattage is similar but not to exceed 1/5, i.e. 1000 * 1/5 = 200 (so 77W is ok for this too...

Hi I have installed 7 Dimmable low energy lights (Megaman GU10 Dimmable 11 watt each), with a 1Kw Varilight Dimmer I have checked the minimum and maximum lamps and I am ok on this front. However when I switch the lamps on there is a distinct buzz coming from the MCB. The CU is brand new...