12V vs 24V LED Strip: Which Voltage Should You Use?
- 2026-09-22 11:54
- /
- Arraystar LED
Use 24V for almost everything. It gives longer runs, thinner wire, less voltage drop. Use 12V only for battery-powered or very short runs.
The Real Differences
| Factor | 12V | 24V |
|---|---|---|
| Max run (low power) | 5m | 10m |
| Max run (high power) | 3m | 6m |
| Current for 20W/m | 1.67A/m | 0.83A/m |
| Wire gauge needed | 16AWG | 18AWG |
| Driver cost | Cheaper | Slightly more |
24V wins on everything except driver cost. The slightly more expensive driver saves you on wire, power injection and voltage drop issues.
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Frequently Asked Questions
Can I use 24V strip on 12V power?
No. A 24V strip on 12V will be half brightness or not light up at all. Match the voltage exactly.
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