The chain is about 7 feet long with 3" of ribbon cable between each light. It's terminated on either side with a locking 3-pin connector, one male and one female, for ground, data and clock connections. The ground and power are also broken out to bare wire leads on either end. The LEDs mount snugly into a 7/16" hole.
Note: There are no labels on the wires. You can look at the example code or hook it up as follows: clock - blue, data - green, red - VCC, white - GND. There is a black arrow on the underside of the LEDs which indicates the direction of the strand.
Dimensions: 7' long, about 4" between centers
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