How do you change the bulb in a lava lamp?

Remove the lava lamp by lifting up the glass. It separates from the base because it just sits in it. Unscrew the old bulb and screw another one in.

When you remove the bulb you will notice that the bulb and base may not be the size of a standard household bulb. On the inside of the base, or the bottom of the base, there should be information about the type and wattage of the bulb.

You need to get the same type of bulb to insure that the bulb base will screw into the socket. The wrong type bulb may not fit in the socket or the bulb may be too large and the top of the lamp will not fit properly on the base. If you get the wrong wattage, the bulb may not be hot enough or to hit to make the bulb function properly.