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yes putting a smart switch before transformer power will be good idea, though not solve my problem, as I prefer to a switch for one of DC wires...
thanks Spencer for the reply, helpful! Just checked on th bulb coming with the spotlight, it indeed indicates on the bulb that is MR16, 5w LED....
I bought two sets of packages from costco, that means two transformers. I set up one inside garage, the other one outdoor, the lights are super...
I bought the whole set from costco. it says transformer is for 150 watts, didn't say how many watts are actually used for each light (spotlight,...