What Is A C9 Light Bulb - This may not seem like a big deal, but this makes all the difference when viewed from. C9 lights are one inch bigger than c7 lights. The c7 bulb is smaller and more suitable for smaller spaces, while the c9 bulb is larger and better for larger spaces. In short, c9 refers to the bulb size and shape. The biggest and brightest of the bunch, c9 leds measure around 1 ¾” in diameter and provide a powerful lumen output. C9 bulbs are larger than the more common c7 bulbs, with a diameter of. C9 lights are the larger of the two most traditional christmas light bulb sizes. They have e17 threaded bases that fit into e17 sockets.
The c7 bulb is smaller and more suitable for smaller spaces, while the c9 bulb is larger and better for larger spaces. The biggest and brightest of the bunch, c9 leds measure around 1 ¾” in diameter and provide a powerful lumen output. In short, c9 refers to the bulb size and shape. C9 lights are one inch bigger than c7 lights. They have e17 threaded bases that fit into e17 sockets. C9 lights are the larger of the two most traditional christmas light bulb sizes. This may not seem like a big deal, but this makes all the difference when viewed from. C9 bulbs are larger than the more common c7 bulbs, with a diameter of.