The transformer works perfectly, but beware of watts cited in the ad, because it is only 40 watts used, the transformer only supports the 80 watts that during peaks and this for 1 to 2 seconds! So because a gaffe of transformers that I had connected two christmas garlands (I did not even make the shade of Watts used) with grilled in 1 hour (with 70 watts required) A more detailed technical note would be recommended