Wintergreen Lighting OptiCore C9 LED Multi-Color Faceted Christmas Light Bulbs (25-Pack) 72643 - The Home Depot
25 Pack Green C9 LED Replacement Bulbs Faceted Green LED Christmas Light Bulb 2 SMD LEDs in Each Bulb Fits E17 Socket Commercial Grade Indoor and Outdoor Use - Amazon.com
Novelty Lights 25 Pack C9 LED Ceramic Outdoor Patio Party Christmas Replacement Bulbs, Multi, 3 LED's Per Bulb, Plastic, Energy Efficient - Amazon.com