- Shellie at Christmas Light Source
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- Wondering which round bulb to choose? This quick video shows you these the three most common sizes of round bulbs - G30, G40, and G50 - and shows you how they compare to a ping pong ball and to each other.
See these bulb shapes/sizes in LED and incandescent in a wide variety of colors here: http://www.christmas-light-source.com/outdoor-string-light-bulbs