This small ball does not take much space, is well in hand and lights according to our needs. It works with 3 AAA batteries and I enjoy opening the box perceive that they are provided. And no sub-brand of Energizer! The lamp base is made of a different plastic, a little stick for easy handling and unscrews easily. It is equipped with 2 half rings for the suspension and these are integrated in the base plate without disturbing stability. One button for on / off / adjust the intensity. Once the light on, just hold the pressure to lower power. Arrive to a minimum and always constant pressure, it will resume its cycle in reverse and go on increasing. It blinks once to signal when it reaches the end of the descending or increasing cycle. At full power, it illuminates perfectly without irritating the eyes and can take ten hours. By lowering the intensity, the lighting is nice and could be helpful to enter a room without waking the person sleeping there. This also extends the life of the batteries is indicated since they can hold up to 160 hours. Its other advantage is its seal. It is guaranteed IPX4, therefore it does not fear moisture. A useful lamp, for example camping.