I ordered the ball light set due to the good recessions and have to say that I pleased bin.Habe they placed on our natural pond and dowelled on a 30x30 cm concrete slab, because otherwise they would blow into the pool due to their low weight by strong winds .Here would certainly angebracht.Bestückt earth spikes I have enough with LED warm light with single light 3 watts per Kugel.Diese luminosity for our needs and it looks really nice OFF.The Although LEDs are not cheap, but at today's electricity prices expected the time, because the balls are not just a couple of hours on.