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
2x 30W R39 Pearl Reflector Spot Light Lava Lamp Glitter Bulb Small Screw SES E14 | eBay
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