In the meantime we bought the third of these lamps. The first was for me, since my wife was always dazzled by the normal bedside lamp, had to be an alternative. The retaining clip can be easily fixed to the bed. The board thickness has 30mm here. We operate lamps with batteries and keep for several weeks. Although the lamps are used every night. My 2 and 4 year old children are also excited and claim the flexible neck enormous. So far no damage has been made. Should one actually times bless the temporal, we will buy back as a.