Novelty Lights, Inc. BUBBLE-3PK Tradtional Bubble Light Replacement 3 Pack, 1 Red, Orange, and Blue Bubble Fluid Light, C7/E12 Candelabra Base, 3 Pack (Only 3 Replacement Bubble Lights - No Stringer) 3 Pack Bubble Replacement pack with Red, Orange, and Blue Bubble Liquid Fix your broken or cracked bubble light with this Bubble Light 3 Pack Easy screw in C7/E12 Candelabra Base UL listed for use on any live or artificial Christmas tree. Use this replacement 3 pack with our 7 light Bubble Light set