25 Watt Lava Lamp Bulb,E17 Intermediate Base The Lava Original Replacement Bulb for 14.5 Inch Glitter and Lava Lamps,120 Volt Lava Lamp Replacement S11 Bulbs,2700K Warm White,Pack of 6 - Amazon.com
Lava lamp - Wikipedia
Luxvista Lava Lamp in Red and Purple for Kids and Adults, 34cm Decorative Lava Lamp Gift with E14 R39 25W Halogen Bulb, BS Plug with Switch : Amazon.co.uk: Lighting
Mathmos Compatible GU10 35W 240V Lava Lamp Mini Halogen Bulb FREE 1ST CLASS POST | eBay