Addressable LED Strip Power Injection: How to Do It Right
- 2026-09-22 11:55
- /
- Arraystar LED
At full white, 60 pixels/m draws ~18W/m. Inject power every 5m on 5V, every 10m on 12V. Always inject both power and ground.
Power Injection Basics
Addressable strips can draw 60mA per pixel at full white. 60 pixels/m = 3.6A/m. Voltage drop kills brightness and causes color shifts. Inject power at intervals.
| Voltage | 60px/m | 144px/m | Inject every |
|---|---|---|---|
| 5V | 3.6A/m | 8.6A/m | 3-5m |
| 12V | 1.5A/m | 3.6A/m | 10m |
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Frequently Asked Questions
Why are my addressable strips pink at the end?
Voltage drop. Red diodes need less voltage, so when voltage drops, blue and green dim first. Power injection fixes this.
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