Holiday Lighting Outlet LED C9 Multi Replacement Christmas Light Bulbs, Commercial Grade Holiday Bulbs, 5 Diode (LED's) in Each Bulb, Fits in E17 Sockets, Pack of 25 Bulbs, LED Bulbs - Amazon Canada
NOMA C9 Christmas Lights Replacement Bulbs, 6 LED Lights, Multi-colour | Canadian Tire
What is the difference between C7 and C9 Christmas Bulbs? – Christmas Light Source