I've always loved the look of white Christmas lights and, when these LED string lights started coming on the market, I tried several different kinds. I never liked them, though, because they always had some kind of ugly cord attached and you really couldn't do a pretty decorative jar because of that. When I saw that these are run off button batteries, I thought I'd try them. I wasn't sure which to get so I got the warm light and also the cool white. I love that each one comes with two strings.The cool lights are pretty blue and I don't like them as much, but they do look good interspersed in a lush green plant. They don't look bad intertwined with the warm ones either, if you want a "gold and silver" look. But the warm lights...they are just gorgeous in empty liquor bottles (mine are the Kirkland Signature Canadian Whiskey bottles from Costco).The little white tab that the button battery goes into can be arranged up at the neck like a little gift tag and easily flipped on and off with the tiny black switch. I took some photos to show you how great they look with the room lights switched off and the TV on at night. The warmth of the lights offsets the blue of the TV very nicely, much as an incandescent light would.The only thing that would make me love these more (or if the vendor wants to make another product that would be really cool) is if there were an automatic shut-off feature after so many hours. Like, for example, a six-hour "on" window, so you could flip on the lights at dinnertime—we eat at 5 p.m.—have your relaxing or romantic evening, and then they'd turn off by themselves at bedtime. You could place jars around strategically at a "starts at 8 p.m." party for the ambience, flip them on however long before guests start arriving (say 7 p.m. if you want the party to end at 1 p.m.), and then when they turn off, it would send a signal to the partygoers that it's time to think about leaving! You could stagger the timing for interesting effect, too, say at a wedding where you want to move guests toward different activities at certain times or if you are doing a craft show and want to "light up" featured items at certain times. I think this kind of fixed timing mechanism could be built in without adding a lot of weight and bulk to the battery compartment, and it would ensure the batteries last a good long while.Es un lindo juego de dos series de luces, que son ideales para iluminar aquellos lugares donde puedes prescindir de una conexion convencional, recien los recibi, pero por el momento estoy mas que satisfecha por el resultadoHola buenas tardes de las 6 piezas que vienen en el paquete no prende bien 1¿Que procede?Great quality very nice decorations