How much power does an LED wall need, and how many circuits?
At full white an indoor LED wall draws about 48–56 W per square foot (520–600 W/m²), and 34–50% of that on typical video. Size circuits for the maximum: a 20 A, 120 V circuit may carry 1,920 W continuously (the NEC 80% rule), about 34–40 sq ft of wall. A 16 × 9 ft P2.5 wall draws up to 6,500 W, 54.2 A at 120 V, on 5 circuits.
Calculator
ft
ft
- Maximum draw
- 6,500 W
- 54.2 A at 120 V
- Typical draw
- 2,188 W
- 18.2 A at 120 V
- 20 A circuits
- 5
- 14 cabinets each, at 80%
- Cabinets
- 10 × 5
- 16'-4 7/8" × 8'-2 7/16"
- Weight
- 717 lb
- Heat
- 7,464 BTU/h
- at typical draw
| Pitch | Max W/ft² | Typical W/ft² | Sq ft per 20 A at 120 V | at 208 V | lb/ft² |
|---|---|---|---|---|---|
| P0.9 | 55.7 (600 W/m²) | 21.4 (230 W/m²) | 34 | 60 | 5.3 |
| P1.2 | 55.7 (600 W/m²) | 21.4 (230 W/m²) | 34 | 60 | 5.3 |
| P1.5 | 55.7 (600 W/m²) | 20.9 (225 W/m²) | 34 | 60 | 5.3 |
| P1.9 | 55.7 (600 W/m²) | 20.4 (220 W/m²) | 34 | 60 | 5.3 |
| P2.5 | 48.3 (520 W/m²) | 16.3 (175 W/m²) | 40 | 69 | 5.3 |
| P3 | 48.3 (520 W/m²) | 16.3 (175 W/m²) | 40 | 69 | 5.3 |
| P4 | 53.9 (580 W/m²) | 26.9 (290 W/m²) | 36 | 62 | 5.3 |
| P5 | 53.9 (580 W/m²) | 26.9 (290 W/m²) | 36 | 62 | 5.3 |
| P6 outdoor | 54.8 (590 W/m²) | 13.7 (148 W/m²) | 35 | 61 | 5.8 |
| P8 outdoor | 53.9 (580 W/m²) | 13.5 (145 W/m²) | 36 | 62 | 5.8 |
| P10 outdoor | 53.9 (580 W/m²) | 13.5 (145 W/m²) | 36 | 62 | 5.8 |
Watts and weights are the medians of the 59 cabinets in PixelBid's library (Absen, Gloshine, INFiLED, Leyard, Unilumin datasheets); P6 and coarser are outdoor panels. Circuits load each breaker to 80% (NEC 210.20(A)) and are counted from the power runs as drawn, so a wall can need one more than its area divides into. Your cabinet's own datasheet beats a median: the full calculator takes it.