My wife wanted a specific color pattern of a specific style of LED bulbs, which isn't available pre-made. So I had to DIY it. I purchased boxes of bulbs (old-style opaque, but in LED), and these white stringers to match the color of the eaves. The sockets have clips installed, which you might be able to clip onto a dripedge, but I bought cheap plastic clips to grab the rafters and bargeboard, and tile clips for along the eaves. The stringers are standard SPT1 18-gauge, the sockets are not water-tight, having gaps around where the wire enters and exits on each side. The sockets are ridged so they are easy to grip. Unlike old-style stringers, the ****-in socket is plastic, not metal, with metal contacts on one side and at the bottom to connect power to the bulb. This means that the bulbs won't get welded into the socket by corrosion if you leave them in for several years, but it means a smaller contact patch. Likely not a problem for the current needs of LEDs, but it could eventually cause a loss of contact. But twisting the bulb slightly would then move the contact patch. The sockets are 12 inches as advertised, and there is very little wire past the last sockets at each end, about 6 inches from the end of the plug. I imagine this is to keep the 12-inch spacing going over multiple stringers. I like to tuck the plugs up under the eaves out of sight, but the short ends makes that difficult without making the spacing noticeably smaller than 12 inches. The male end does NOT have a female receptacle built-in to it as do some stringers, so you need a 3-in-one receptacle or a vampire plug to do anything but extend the stringer. For $11.99, it's not the cheapest, but the cheaper ones I saw were 20 guage or charged more for shipping than the cost of the product. I'd recommend these for good value.