I wanted to get this for my sons bedroom, I thought that this was a really unique idea and thought he would love it. This takes 4 AAA batteries (not included) and I was really surprised how nice this actually looked.

This casts a curved rainbow over the ceiling and is very colourful without being too bright. My son loves this and was amazed that there was a rainbow in his room, I purchased this light at a discount from Amazon.ca and both my son and I are very happy with it.