Most lighting calls are not new installs, they are something that stopped working right. The far end went dim, a section died, the colors are off, or the whole run quit after a storm. A lot of it traces back to power and connections rather than the lights themselves.
Dim far end and shifted colors
This is the classic one. Voltage drops as it travels down a long run, so the far end gets less than it needs. White starts looking pink or yellow and everything gets dim. The fix is power injection, feeding power in at additional points so the whole run gets what it needs.
Dead sections
Usually a bad connection, a cut wire, or a failed node. On addressable runs a single failed node can take out everything downstream of it, because the data has to pass through each node to reach the next.
Storm and corrosion damage
Wind is usually what takes lights down here, and salt air finishes off anything brittle or poorly sealed. The joints between cords and strands are the weak point, so those get reinforced and protected rather than just reconnected.
- A dim far end almost always means power injection, not bad lights
- One failed node can kill everything downstream on an addressable run
- Wind takes lights down more often than salt does, but salt finishes off weak parts
- Connections between cords and strands are where most failures start
