NEC UM361X vs Panasonic PT-TX440
 |  Panasonic PT-TX440 | |
|---|---|---|
| Key differences | ||
| White light outputISO | 3,600 lm ISO | 3,800 lm ISO (Normal power, Dynamic mode) · 3,800 lm ANSI |
| Throw ratio | 0.36:1 | 0.46:1 |
| Fan noise | Max 38 dB(A) · Normal 29 dB(A) · Eco 28 dB(A) | Normal 38 dB(A) · Eco 35 dB(A) |
| Room fit | ||
| Distance to screen | 0.73 m | 0.93 m |
| Brightness | ||
| Rated brightness | 3,600 lmDerived | 3,800 lmDerived |
| White light outputISO | 3,600 lm ISO | 3,800 lm ISO (Normal power, Dynamic mode) · 3,800 lm ANSI |
| Brightness uniformity | — | 85% |
| Display system | ||
| Imaging technology | 3LCD | 3LCD |
| Chip / panel diagonal | 0.63 in | 0.63 in |
| On-screen resolution | 1024 × 768Derived | 1024 × 768Derived |
| Native resolution | 1024 × 768 | 1024 × 768 |
| Native aspect | 4:3Derived | 4:3Derived |
| Contrast | ||
| Dynamic contrast | 6,000:1 | 20,000:1 |
| Dynamic contrast method | Dynamic iris | — |
| Colour | ||
| Colour bit depth (per channel) | 10 bit | 8 bit |
| Calibration | ||
| Picture mode memories | 7 | — |
| Light source | ||
| Light source | Lamp | Lamp |
| Lamp power | 255 W | 230 W |
| Replacement lamp | NP33LP | ET-LAL510 |
| Light-source life | 3,800 h max · 5,000 h normal · 6,000 h eco | 10,000 h normal · 20,000 h eco |
| Life defined as | — | 50% brightness |
| Light output control | Steps | — |
| Warm-up time | 6 s | — |
| Cool-down time | 0 s | — |
| Optics | ||
| Throw ratio | 0.36:1 | 0.46:1 |
| Throw measured from | Front of the case | — |
| Image size | 61.5–117 in | 50–100 in |
| Projection offset | 75% | — |
| Zoom | Digital | None |
| Focal length | 4.78 mm | 6.08 mm |
| Aperture (f-number) | 1.8 | 1.8 |
| Focus | Manual | Manual |
| Autofocus | No | — |
| Vertical keystone | 10° | 15° |
| Horizontal keystone | 10° | 15° |
| Auto keystone | — | Yes |
| Corner correction | 4-corner | 4-corner |
| Grid warp | — | Yes |
| Interchangeable lens | — | No |
| Inputs & control | ||
| HDMI inputs | 2 × HDMI | 2 × HDMI (HDCP 1.4) |
| HDMI inputs (count) | 2Derived | 2Derived |
| Other video inputs | VGA | VGA, + Composite |
| Max input resolution | WUXGA | — |
| Audio inputs | — | 3.5 mm, RCA |
| USB media playback | — | Yes |
| Control ports | RS-232 | RS-232 |
| PJLink | Class 1 | Class 2 |
| Horizontal scan | 15–100 kHz | — |
| Vertical scan | 50–120 Hz | — |
| Smart platform | ||
| Ethernet | Yes | Yes |
| Audio | ||
| Speaker power | 20 W | 10 W |
| Speakers | 1 | — |
| Layout | Mono | Mono |
| Audio outputs | 3.5 mm | 3.5 mm |
| HDMI audio return | NoneDerived | NoneDerived |
| Physical & installation | ||
| Dimensions (W × D × H) | 378 × 428 × 112 mm | 335 × 329 × 134 mm |
| Weight | 5,600 g | 3,900 g |
| Orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Ceiling mount | — | M4, 10 mm deep, 1.25 N·m |
| Dust filter | Replaceable | Replaceable |
| Environment & power | ||
| Operating temperature | 5–40°C | 5–40°C |
| Operating humidity | 20–80%RH | 20–80%RH |
| Altitude | 2,600 m · high-altitude mode | 2,700 m |
| Power draw | Max 337 W · Normal 257 W · Eco 214 W | Max 300 W |
| Standby | 0.39 W | 0.5 W |
| Networked standby | 2.4 W | — |
| Power supply | — | Built in |
| Mains input | 100–240 V · 50/60 Hz | 100–240 V · 50/60 Hz |
| Noise | ||
| Fan noise | Max 38 dB(A) · Normal 29 dB(A) · Eco 28 dB(A) | Normal 38 dB(A) · Eco 35 dB(A) |
| Safety & compliance | ||
| Marks | FCC, + UL | FCC |
| Support & ownership | ||
| Warranty | 3 yr (light source 6 mo or 1,000 h) | — |
| User manual | https://sharp-displays.jp.sharp/support/webdl/dl_service/data/manual/en/um351w/UM351W_manual_ENG_v3.pdf | https://bizpartner.panasonic.net/public/ppr/file_view/194386 |
| Spare parts | — | Lamp ET-LAL510 · Air filter ET-RFL300 |
| In the box | ||
| In the box | Power cord, Remote, Remote batteries, + Quick start guide, + User manual, + VGA cable | Power cord, Remote, Remote batteries |
| Remote | IR | — |