I purchased this on Amazon about 5 or 6 years ago. I used it quite a bit for a while, but its use became less frequent, and I've been storing it. I really liked it because it creates a nice, relaxing atmosphere, so I kept it in the living room at night! You can adjust the light intensity (^^) I don't know how many kilograms it weighs, but it's a bit heavy! There's a mat-like thing that came with it to put underneath, but it's a bit crusty where the lamp melted onto it. The box is quite tattered in places, but I'll wrap it in bubble wrap and pack it back in the box! If the lamp isn't lit and the humidity in the room is high (over 55%), it will melt, so you can take the following measures! (Quoted from the internet) ↓ Light it: Turn it on for about 30 minutes to an hour to raise the surface temperature of the lamp to about body temperature, which will help the absorbed moisture evaporate. Wipe it: Wipe the white parts of the surface with a tightly wrung towel, then wipe away the moisture with a dry cloth. It dries quickly due to the heat. Dry it: When not in use, store it in a place with low humidity, or cover it with a plastic bag to protect it from moisture.