For appearance and shape this lamp would get smooth five stars, and also the principle of "evaporation by the heat of the lamp" is basically functioning well. But unfortunately it is unfortunately totally impractical. The container holding the water and perfume oil, namely very flat and runs at the slightest nudge on - because there is no seal, directly into the lamp socket - short circuit, end of the light bulb, with a larger water test flight also equal to the whole version. Very unfortunate.
