NEC NP-UM351W vs Promethean UST-P3
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
| NEC NP-UM351W | Promethean UST-P3 MSRP $499 | |
|---|---|---|
| Display system | ||
| Imaging technology | 3LCD | DLP |
| Technology brand | 3LCD | — |
| Chip / panel diagonal | 0.59 in | 0.65 in |
| Native aspect ratio | 16:10 | 16:10 |
| Native resolution | 1280 × 800 | 1280 × 800 |
| Optics | ||
| Throw ratio | 0.36:1 | 0.35:1 |
| Throw reference point | Front | — |
| Projection distance table | 58″: 0.11 m · 60″: 0.12 m · 70″: 0.2 m · 80″: 0.28 m · 90″: 0.35 m · 100″: 0.43 m · 110″: 0.51 m | 80″: 0.28 m · 87″: 0.34 m · 97″: 0.42 m · 100″: 0.45 m |
| Zoom type | Digital | Digital |
| Zoom ratio | 1.4× | — |
| Focus | Manual | Manual |
| Fixed offset | 81% | — |
| Focal length | 4.78 mm | — |
| F-number | 1.8 | — |
| Interchangeable lens | No | No |
| Image size range | 58–110 in | 80–100 in |
| Vertical keystone | -10–10° | -40–40° |
| Horizontal keystone | -10–10° | — |
| Corner / warp correction | 4pt | — |
| Light source | ||
| Light source type | Lamp | Lamp |
| Light source detail | 255 W AC lamp | UHP lamp |
| Lamp wattage | 255 W | 240 W |
| Light source life | Eco: 6,000 h · Normal: 5,000 h · High bright: 3,800 h | Normal: 5,000 h · Eco: 8,000 h |
| Life definition | — | Unspecified |
| Warm-up time | 6 s | — |
| Cool-down time | 0 s | — |
| Brightness | ||
| ISO light output | 3,500 lm | — |
| Claimed brightness (non-standard) | — | 3,150 |
| Claimed brightness unit | — | Unspecified |
| Contrast & black level | ||
| Dynamic contrast | 4,000:1 | 2,300:1 |
| Dynamic light control | Dynamic iris | — |
| Colour | ||
| Gamma / EOTF presets | — | 2.2, 2.4 |
| Bit depth / 'number of colours' | 30 bit | — |
| Calibration & picture control | ||
| Colour management system | — | 6-axis |
| Picture mode memories | 7 | — |
| Audio | ||
| Speaker power | 20 W | 20 W |
| Speaker count | 1 | 2 |
| Audio channels | Mono | Stereo |
| Audio outputs | 3.5 mm | 3.5 mm |
| Inputs, control & connectivity | ||
| Max input signal | 1920 × 1200 | 3840 × 2160 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI 1/MHL: HDMI; HDMI 2: HDMI | — |
| Audio input terminals | 3.5 mm, Rca, Mic | 3.5 mm |
| Horizontal scan frequency | 15–100 kHz | 15–91.4 kHz |
| Vertical scan frequency | 50–120 Hz | 24–120 Hz |
| VGA input | Yes | Yes |
| USB media playback | Yes | — |
| RS-232 | Yes | Yes |
| LAN control | Yes | Yes |
| PJLink class | Class 1 | — |
| Control ecosystem drivers | Crestron | Crestron |
| Ethernet | Yes | Yes |
| 3D | ||
| 3D support | — | Yes |
| 3D formats | — | Frame sequential, Top-bottom, Side-by-side, Frame packing |
| Acoustic noise | ||
| Fan noise (sound pressure) | Eco: 28 dB(A) · Normal: 29 dB(A) · High bright: 37 dB(A) | — |
| Environment & power | ||
| Operating temperature | 5–40°C | 0–40°C |
| Operating humidity | 20–80%RH | 10–85%RH |
| Altitude / high-altitude mode | 2,600 m | — |
| High-altitude mode | Yes | — |
| Operating orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | — |
| Power consumption (max) | 337 W | 330 W |
| Power consumption by mode | Eco mode off: 324 W · Normal: 257 W · Eco: 214 W | — |
| Standby power | 0.39 W | 0.5 W |
| Networked standby power | 2.4 W | — |
| Power supply | Internal | — |
| Physical & installation | ||
| Width | 378 mm | 288 mm |
| Depth | 428 mm | 375 mm |
| Height | 112 mm | 168 mm |
| Weight | 5.6 kg | 4.8 kg |
| Colours / finishes | — | Black |
| Mount hole pattern | — | Thread: M4 · Screw length mm: 12 |
| Safety & compliance | ||
| Photobiological risk group | — | RG1 |
| Safety & market certifications | UL, FCC | CE, FCC, UL, CCC |
| Support & ownership | ||
| Warranty | 🇪🇺 EU 3 yr | — |
| Light-source warranty | 6 months, max. 1000 hrs | — |
| User manual | https://sharp-displays.jp.sharp/support/webdl/dl_service/data/manual/en/um351w/UM351W_manual_ENG_v3.pdf | https://cdn.cs.1worldsync.com/55/fb/55fb8d82-0779-48d1-9c55-233622ca8bbd.pdf |
| In the box | ||
| Box contents | Remote, Vga cable, Power cord, Quick start guide, Manual cd, Wall mount kit, Security sticker | Projector, Remote, Batteries, Quick install guide, Vga cable, Power cord, Hdmi cable |
| Remote type | IR | IR |