Bought a 15 watt bulb for my daughter's lava lamp which she got for her birthday a few years ago. The original bulb died and had to be replaced. It fits perfectly in the lava lamp and does its job by melting the lava and keeping it moving. I've had it work as a night light every night since we got the bulbs. I think several months have passed. I can never find these bulbs in stores so this is a great bulb if you are looking for a 15w T7 bulb for your lava lamp.
Ceiling lamp Yeelight YLXD013-B, 50 W, number of lamps: 1 pcs., color: white
62 Review
Royal Canin Gastrointestinal Low Fat Dry diet food for adult dogs with digestive disorders, 12 kg
23 Review
Lamp LED Xiaomi Mi Smart LED Bulb Warm White (XMBGDP01YLK), E27, 8 W, 2700 K
26 Review
Lamp LED Yeelight Smart LED Bulb W3 (YLDP005), E27, A60, 8 W, 6500 K
47 Review