How to Repair Bubble Lights


Bubble lights have a tube filled with liquid called methylene chloride that boils and bubbles when the light is lit. Antique bubble lights are highly prized by collectors. With precautions, bubble lights can sometimes be repaired.

Things You'll Need

  • insulated screwdriver

Replace Fuse

  • Check the fuse if all the lights are out. If it is blown, you'll need to replace it with another 5A fuse.

  • Unplug the light set by pulling the plug. Do not pull it by the cord.

  • Open the fuse cover on the plug by sliding it towards the blades. You may need an insulated screwdriver to do this.

  • Replace the fuse and close the access cover. If the fuse blows again, you have to replace the light set.

Replace a Bulb

  • Unplug the light set. Check the white cord tag for replacement bulb information. It is usually a 120 volt, 5 watt maximum bulb.

  • Grasp the plastic lamp holder and unscrew the bulb from the base by turning it counterclockwise. Take great care not to break the glass vial of liquid on top of the bubble light.

  • Screw the replacement bulb into the base clockwise. Be very careful not to overtighten it or the glass or plastic may break.

  • Plug the light set back in and make sure it is working.

  • Gently shake the light to mix the fluid if the bubble lights will not bubble. It may take up to five minutes to heat up and start bubbling.

Tips & Warnings

  • Bubble lights do not bubble if it is under 65 degrees Fahrenheit.
  • Bubble lights should not be lit for more than 90 days or used outdoors.
  • Allow bulbs to cool before touching them.
  • Don't try to replace the bulb inside the plastic casing of a bubble light nightlight. It's permanently glued together for safety reasons.
  • Don't try to plug in more than 60 bulbs end to end.

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