Everything read carefully's always very important. The photo (LED lights) and sugieren a review that the button cells are included as a starter package. Not. The lamps come without description in foil and needed without the 2 button cells. This should be particularly point. The lamp itself in line with expectations. For the price you can not expect a very high quality product. But they can be mounted on a baseball cap with no problems. With a little caution, the lamp should long do their job. The shipment is outstanding fast, so you have no problems at all. The contact with the Consignor is friendly and functional.