Actually, I had bought the balloons as a gift for my goddaughter. But I could not wait to try them out yourself it (you have to know what you give away eventually). Property then times a packet opened and the same tested all 5 colors. Except for green all the balloons lit immediately when "Unlock". In green I had time to knock on the lights, it went well. White and Yellow have relatively quickly given up the ghost (but still more than 15 hours, about 24 hrs.). Green lights still, since now 1.5 weeks. The balloon is indeed now shriveled (or have separated him from the lamp), but it will turn to my showcase cheerfully to himself. Blue has (until the neighbor has the remains from her porch, ie Monday) also shone (had burst and the light fell on their porch from the balcony). Red illuminated even by the end of last week (including one week). Of course, the balloons light no longer as intense as at the beginning, after a while. However, they make a nice light and conjure up a great atmosphere. My friends were excited about such a beautifully decorated balcony. Orange (when it is no longer lit yellow!) Could light up a little more and white was too boring for me. In red unfortunately you can see the lamp too much (no balloon lights, but a balloon with a glowing red tip). But I am very excited by blue and green. Super thing! With info where it would come from have been even better, have unfortunately have to wait long, which leads antürlich impatient people to resentment. Would she still be buying again!