Plasma Ball Lamp For Kids Does this plasma ball lamps comes with a power cord? Yes, it comes with a power cord. It is specially designed as a data cable with a charging head to meet the customer’s needs. Does the plasma ball lamp effect last long? We have recently upgraded the plasma ball lamp effect, so it lasts much longer than before. If you do not use it frequently, it is recommended to turn off the power to prolong its lifespan. What kind of material is the plasma dome light made of? We use a sturdy ABS material with a glass exterior. We are also interested in weighting the base so that it won't easily fall off the table and cause accidents.