Based on the reviews anyway remained only the light of wall stickers Kings, they seem to be the only ones who really nice and shine long, do not fall off and again are abmachbar.
So I bought the sticker, in the hope that our 3-year-old prefers to stay in his bed and not come permanently into our big bed.
As soon as the sticker I activated them as I put them on the window sill in the sun. At least 10 seconds under a lamp at a distance of 10-20 cm in the instructions. I left them half an hour on the window sill in the sun. :-)
Next they were joining forces to the stick and when everything was ready .... blinds down and my son squealed for joy and jumped on the bed and found it beautiful.
We have now a 2 Pack purchased, because we have something stuck tight and we want to paste over the ceiling above the bed.
So price-performance ratio absolutely justified because what it use to me if I spend less and 5 do not light up the things and fall off permanently? My child has great joy and it looks really great. If I have liked when I was a little girl ... I had a "luminous dinosaurs" from NEM YPS booklet, but who has shone only briefly .... :-(