R39 E14 Base Lava Lamp Bulb, 30 Watt Replacement Bulbs for Lava Lamps, Extra Long Life Reflector Spot Light Bulb, High Temp Resistant Lava lamp Light Bulb - Amazon.com
SerBion Lava Lamp Light Bulb R39 Reflactor for 16-Inch Glitter Lamp 25Watt Light Bulb 120Volt Dimmalbe Warm White - Amazon.com
Amazon.com: LAVA Original Lamp Replacement 25W Reflector Bulb, E14, 25W - Set of 2 : Tools & Home Improvement