This rainbow light arrives in box (great for wrapping as a gift) and inside is just the unit, there are no batteries provided, nor an AC Adapter. That worried me not as by its very nature, I believe this particular projector light to be at its best when run by an independent means, not tied to a power outlet as you’ll want to position it to get the best effect from the rainbow and that may not necessarily be near to a power outlet. For that reason I installed rechargeable AAA batteries, so I could move it around and place it where I liked.
The colours are bright. This projector has timer so after a while it turns off by itself