25 Pack Multi-Color C9 LED Replacement Bulbs Faceted Multi-Color LED Christmas Light Bulb 2 SMD LED diodes in Each Bulb Fits E17 Socket Commercial Grade Indoor and Outdoor Use - Amazon.com
Set of 4 Multi-Color Opaque Ceramic C9 Christmas Replacement Bulbs - Walmart.com
Amazon.com : Minetom 25 Pack C9 Clear Replacement Bulbs for Christmas Lights, E17 C9 Intermediate Base Incandescent C9 Christmas Light Bulbs, 7-Watt (25 Pack, Multi-Colored) : Tools & Home Improvement
C9 SMD Multi Color Quick Change LED Replacement Bulb| Holiday LEDS