The glasses are a great idea and function properly. Through four powerful LEDs they are surprisingly bright, so that the two glasses, which I bought, enough to illuminate our large patio table in the evening. But suspended in the tree to make the jars well and are even in the daytime a great eye catcher. My daughter enjoys it to decorate the glasses (preferably constantly new). They also have rain well tolerated to date and the best - in the bad storm on Pentecost we had forgotten a glass in the tree. The fierce wind was then indeed turning the latch so that the LEDs lit, and I could see through the window, as the glass is constantly struck against the tree, but it is not broke! And the wind speed at 140 :)