C9 LED E17 Faceted Christmas Bulbs (100C9MSMD) - Action Lighting™, Inc.
Incandescent Versus LED - Plantscape Solutions
Wintergreen Lighting FlexFilament C9 LED Shatterproof Blue Vintage Edison Christmas Light Bulbs (5-Pack) 80669 - The Home Depot
C9 Multicolor Smooth OptiCore LED Christmas Light Bulbs
Set of 25 Holiday Lighting Outlet C9 LED Christmas Lights | Green C9 LED Filament Lights | C9 Christmas Light Bulbs for Indoor & Outdoor Use | Traditional C9 LED Christmas Lights - Amazon.com
C9 120V Color Change Multicolor LED Bulbs - Wintergreen Corporation
Holiday Lighting Outlet Faceted C9 Christmas Lights | Cool White LED Light Bulbs Holiday Decoration