I ordered these late in the season so I only had them on the bushes for about a week, but I am happy so far. I am really happy with the wrapping of each light that has prevented water to enter the bulbs. Living in the Pacific NW, there is a lot of rain in November and December. Most of the other lights I took down had water and even ice in the bulbs, but these were dry. I'm hoping that means they will last a lot longer!
I was skeptical about this product because it was a good $5 more than green net lights I could get locally, but when the order came I found out why the price differential. This is a really well-made product. The wires are thick with insulation to protect from the elements and the connections are high quality. This is essentially a commercial-grade produce, so the price was worth it.