The internal current-carrying lamp thread will only electrically insulated by a thin cardboard tube from the external lamp holder made of metal. So, if you touch the lamp to turn on the light switch, or off to turn (which is, unfortunately, nowhere declares), you could easily get an electric shock, especially as the cardboard tube will be incinerated by the normal heat generation of a classic bulb sometime or just just might fall out. Since the roller is easy to grip with the fingers and in ignorance of the insulating function (does not look pretty from), will be safely removed sometimes, one has unwissendlichen tinkered a lethal current case. The marking "250 Watt" on the outer lamp socket can not be correct also, because the resulting heat build up will accelerate the burning of Pappröllchen very and also the lamp cable to the correspondingly high current flow seems slightly kleinkalibrig. Logically has this electrical product no CE mark. Amazon should take immediately from the range and start a recall! PS: In fact, still missing the information required in devices with metal casing, third (yellow-green) ground wire. One might almost think that there was intent at work. How else would it be possible on such a simple electrical product completely all wrong to construct what is possible at all !?