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- EF-12 vs UHD55
Epson EF-12 vs Optoma UHD55
What EF-12 does better (3) and where UHD55 wins (7) — every spec side by side.
Why is EF-12 better than UHD55?
- Power consumption102 W vs 317 W3.1×
- Contrast ratio (dynamic / claimed)2,500,000:1 vs 1,200,000:12.1×
- Fan noise27 dB vs 28 dB+4%
Why is UHD55 better than EF-12?
- Brightness (ANSI / ISO lumens)1,000 lm vs 3,600 lm3.6×
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Lens shiftNone vs Vertical
- Built-in speakers (total output)5 W vs 10 W2×
- Largest image size150″ vs 300″2×
- HDMI inputs1 vs 22×
- Ethernet (LAN)No · EF-12: Yes
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 3840 × 2160 (4K UHD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| 4K method | — | 4K by pixel shifting |
| Display technology | 3LCD | DLP |
| Light source | Laser | — |
| Brightness (ANSI / ISO lumens) | 1,000 lm | 3,600 lm |
| Contrast ratio (dynamic / claimed) | 2,500,000:1 | 1,200,000:1 |
| HDR support | Yes | Yes |
| HDR formats | HDR10, HLG | HLG |
| 3D playback | Yes | Yes |
| Lens & placement | ||
| Throw ratio | 1:1 | 1.21:1 |
| Throw ratio (zoomed in) | — | 1.59:1 |
| Throw type | Standard throw (1.0:1 and longer) | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | 2.21 m | 2.68 m |
| Smallest image size | 30″ | — |
| Largest image size | 150″ | 300″ |
| Lens shift | None | Vertical |
| Autofocus | No | — |
| Keystone correction | Yes | — |
| Automatic keystone correction | Yes | — |
| Sound | ||
| Built-in speakers (total output) | 5 W | 10 W |
| Smart & streaming | ||
| Smart platform | Android (not TV-certified) | — |
| Built-in smart platform | Yes | — |
| Wi-Fi | Yes | — |
| Bluetooth | Yes | — |
| Chromecast built-in | Yes | — |
| Voice assistant | Google Assistant | — |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | Yes |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 102 W | 317 W |
| Light source life | — | 4,000 h |
| Light source life (eco mode) | — | 10,000 h |
| Design & noise | ||
| Fan noise | 27 dB | 28 dB |
| Fan noise (eco mode) | 22 dB | 25 dB |
| Weight | 2.1 kg | — |
| Width | 175 mm | — |
| Height | 135 mm | — |
| Depth | 175 mm | — |
| Colours | Black | White |
