25 Pack 7 Watt C9 Ceramic Red Incandescent Light Bulb, Intermediate Base

Brite Star 00020 - C9 Intermediate Screw Base Clear (25 pack) Christmas Light Bulbs

Novelty Lights, Inc. C92512-GR Commercial Grade Christmas Stringers, Intermediate Base (C9/E17), 12" Spacing, Green Wire, 25' Long (25 Sockets)