Epson PowerLite E20 vs NEC NP-UM351W
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
| Epson PowerLite E20 MSRP $379 | NEC NP-UM351W | |
|---|---|---|
| Display system | ||
| Imaging technology | 3LCD | 3LCD |
| Technology brand | 3LCD | 3LCD |
| Number of imaging devices | 3 | — |
| Chip / panel diagonal | 0.55 in | 0.59 in |
| Native aspect ratio | 4:3 | 16:10 |
| Native resolution | 1024 × 768 | 1280 × 800 |
| Optics | ||
| Throw ratio | 1.44–1.95:1 | 0.36:1 |
| Throw reference point | — | Front |
| Projection distance table | 50″: 1.46–1.98 m · 60″: 1.76–2.38 m · 70″: 2.05–2.78 m · 80″: 2.35–3.18 m · 100″: 2.94–3.98 m · 150″: 4.42–5.98 m · 200″: 5.9–7.97 m | 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 |
| Zoom type | Digital | Digital |
| Zoom ratio | 1.35× | 1.4× |
| Focus | Manual | Manual |
| Fixed offset | — | 81% |
| Focal length | 16.7 mm | 4.78 mm |
| F-number | 1.44 | 1.8 |
| Interchangeable lens | — | No |
| Image size range | 30–350 in | 58–110 in |
| Vertical keystone | -30–30° | -10–10° |
| Horizontal keystone | -30–30° | -10–10° |
| Corner / warp correction | 4pt | 4pt |
| Light source | ||
| Light source type | Lamp | Lamp |
| Light source detail | UHE (Ultra High Efficiency) lamp | 255 W AC lamp |
| Lamp wattage | 210 W | 255 W |
| Light source life | Eco: 12,000 h · Normal: 6,000 h | Eco: 6,000 h · Normal: 5,000 h · High bright: 3,800 h |
| Warm-up time | — | 6 s |
| Cool-down time | 0 s | 0 s |
| Brightness | ||
| ISO light output | 3,400 lm | 3,500 lm |
| Colour light output (CLO) | 3,400 lm (colour) | — |
| Brightness by mode | High: 3,400 lm · Eco: 2,200 lm | — |
| Contrast & black level | ||
| Dynamic contrast | 15,000:1 | 4,000:1 |
| Dynamic light control | — | Dynamic iris |
| Colour | ||
| Bit depth / 'number of colours' | 10 bitDerived | 30 bit |
| Calibration & picture control | ||
| Picture mode memories | — | 7 |
| Audio | ||
| Speaker power | 5 W | 20 W |
| Speaker count | 1 | 1 |
| Audio channels | Mono | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| Inputs, control & connectivity | ||
| Max input signal | — | 1920 × 1200 |
| HDMI port count | 1 | 2 |
| HDMI ports (feature-level) | — | HDMI 1/MHL: HDMI; HDMI 2: HDMI |
| Audio input terminals | 3.5 mm, Rca | 3.5 mm, Rca, Mic |
| Horizontal scan frequency | — | 15–100 kHz |
| Vertical scan frequency | — | 50–120 Hz |
| VGA input | Yes | Yes |
| USB media playback | No | Yes |
| RS-232 | Yes | Yes |
| LAN control | No | Yes |
| PJLink class | — | Class 1 |
| Control ecosystem drivers | — | Crestron |
| Wi-Fi | None | — |
| Ethernet | No | Yes |
| Setup automation | ||
| Auto keystone | No | — |
| Acoustic noise | ||
| Fan noise (sound pressure) | Eco: 28 dB(A) · Normal: 37 dB(A) | Eco: 28 dB(A) · Normal: 29 dB(A) · High bright: 37 dB(A) |
| Environment & power | ||
| Operating temperature | 5–40°C | 5–40°C |
| Operating humidity | 20–80%RH | 20–80%RH |
| Altitude / high-altitude mode | 3,048 m | 2,600 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | — | 337 W |
| Power consumption by mode | Eco: 235 W · Normal: 345 W | Eco mode off: 324 W · Normal: 257 W · Eco: 214 W |
| Standby power | 0.3 W | 0.39 W |
| Networked standby power | — | 2.4 W |
| Power supply | — | Internal |
| Physical & installation | ||
| Width | 302 mm | 378 mm |
| Depth | 249 mm | 428 mm |
| Height | 92 mm | 112 mm |
| Weight | 2.7 kg | 5.6 kg |
| Colours / finishes | White | — |
| Mount hole pattern | Thread: M4 · Screw length mm: 9 | — |
| Air filter | Replaceable | — |
| Safety & compliance | ||
| Safety & market certifications | FCC, UL | UL, FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 2 yr · 🇨🇦 CA 2 yr · 🇪🇺 EU 3 yr | 🇪🇺 EU 3 yr |
| Light-source warranty | 90 days (lamp limited warranty) | 6 months, max. 1000 hrs |
| User manual | https://files.support.epson.com/docid/cpd5/cpd59679.pdf | https://sharp-displays.jp.sharp/support/webdl/dl_service/data/manual/en/um351w/UM351W_manual_ENG_v3.pdf |
| In the box | ||
| Box contents | Projector, Power cord, Hdmi cable, Remote, Batteries, Software cd, Quick setup guide, Warranty card | Remote, Vga cable, Power cord, Quick start guide, Manual cd, Wall mount kit, Security sticker |
| Remote type | — | IR |