This little light comes wrapped in a foam type bag and packaged in a cardboard box, it is around 250mm long so it can fit anywhere. It is powered by 3 AA batteries. The unit is simple to fit by either the supplied screws or double sided adhesive strip. Once the bracket is fixed the light unit then uses magnetism to attach it, this method makes it removable for changing the batteries or using it as a torch.
It has a 3 position switch so that it can be turned off, on or put in sensor mode. In sensor mode it easily picks up movement nearby and turns off shortly after the movement has gone. The light output is quite bright from the 5 LEDs it contains.
DISCLAIMER: I received this item free in return for an honest and unbiased review.