What Is The Difference Between C7 And C9 Christmas Bulbs - Web typically, a c7 bulb uses about 5 to 10 watts of energy, whereas a c9 bulb, due to its larger size and higher brightness,. Web in this holiday lighting showdown, we unravel the differences between two christmas light favorites: C7 bulbs are about 1.5 inches tall and have e12 bases, and c9 bulbs are roughly 2.25 inches tall and have e17. C9 the main difference between c7 christmas lights and c9 christmas lights lies in their size.
Web in this holiday lighting showdown, we unravel the differences between two christmas light favorites: C7 bulbs are about 1.5 inches tall and have e12 bases, and c9 bulbs are roughly 2.25 inches tall and have e17. Web typically, a c7 bulb uses about 5 to 10 watts of energy, whereas a c9 bulb, due to its larger size and higher brightness,. C9 the main difference between c7 christmas lights and c9 christmas lights lies in their size.