Yes, these "candles" bubble cheerfully on your tree, concealed bulb glows in the base, lighting up the bubbling column!!

Features:
Color: multi-colored bubblers / green wire
Multi-color consists of: red, green and yellow
Liquid comes in two colors, red and orange.
Number of bulbs on string: 7
Spacing between each light: 24"

Additional Product Features:
If one bulb goes out the rest will stay lit
Each light has a clip on their base so you can easily attach the lights to your tree or other desired surfaces
UL listed for indoor and outdoor use
End-to-end connectors allow you to connect up to 6 sets of these lights together (not to exceed 210 watts)
120 volts, 60Hz, 0.29 amps, 35 watts
Material(s): plastic and glass bubblers/wire