17mm balls are the most popular size for ball string lights, not too big or too small. Each globe on the string light are filled with glue to reach a high waterproof rating, which creates a long lasting, weather resistant decorative lights for you.

Cord of this string lights is made with black PVC wires. Diameter of the wire is 1.9mm. Compared with the 1.6mm wires, which is popular for string lights, this string is much strong. If you are familiar with this product or bought these string before, you must have known how important the quality of the wire is.

Color of this LED Christmas lights is RGB, which is short for the name of three primary colors, Red, Green and Blue. It means that each bulb is color changing with these three colors. When different colors mixed, the whole string light will send out several different colors, like pink, orange, purple etc. This is one of the amazing features of RGB color changing string lights.

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