I bought this product for my daughter as we are doing a topic on the Solar System.
Firstly on each planet there is a little plastic blob, with a hole in, for you to thread the wire through to hang it up with, on Planet earth there is no hole, so I have tried to push a hole through it myself but I can't without damaging the Earth!
There are no instructions of which order you hang the planets up so, the planets, Earth (because it looks like Earth) Saturn (because of the rings) Jupiter (because of the red spot) are the only ones we can really know are them, the books my daughter uses with the pictures don't look similar to the ones supplied in the box, for example Neptune is a deep blue colour, with quite a few dark spots (like Jupiter) the larges is about the size of Earth, none of these planets look like Neptune, at all. So how can I differentiate them?
I can't tell you about the strength of the glow, as we have just put it back in the packaging to return it.
Very disappointed with it all really.