One negative: these lamps do not work with a dimmer, as stated in the announcement of the seller.
I bought an LED drive from Amazon when I insalle lamps they do not stop blinking.
As against the normal switch the lamps work well, good brightness (as if we were in broad daylight).
I can recommend it to all those who have normal switches but to all those who have to drive LED bulbs I do not recommend it.
I bought seven lamps ... hoping to save money!