Decorative Jarva lava lamp with violet lava Children & adults alike are enchanted by the violet lava lamp's movements, which rise & sink but also suddenly & unpredictably separate or merge again. In the hustle & bustle of day-to-day life nowadays, looking at the Jarva lava lamp simply has a calming effect &, as accent-rich additional lighting, it contributes to a relaxed & comfortable atmosphere everywhere. Energy efficiency class:C