If the light bulb in the lava lamp had a lower wattage, what changes would you expect to see in the lava lamp. what if the lava lamp had a higher wattage?
By energy efficient, if you mean LED, no the lamp will not flow like normal. If the bulb is still an incandescent but slightly lower wattage, it will take a little longer to get going. Lava lamps require heat and light for the effect to work.
