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- QT12 vs EH-TW840
Acer QT12 vs Epson EH-TW840
What QT12 does better (2) and where EH-TW840 wins (5) — every spec side by side.
Why is QT12 better than EH-TW840?
- Brightness (ANSI / ISO lumens)6,500 lm vs 4,000 lm+62%
- Light source life6,500 h vs 6,000 h+8%
Why is EH-TW840 better than QT12?
- Resolution (on screen)1280 × 720 (HD) vs 1920 × 1080 (Full HD)
- Native panel resolution1280 × 720 (HD) vs 1920 × 1080 (Full HD)
- HDMI inputs1 vs 22×
- Ethernet (LAN)No · QT12: Yes
- Audio outputNo · QT12: Yes
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1280 × 720 (HD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1280 × 720 (HD) | 1920 × 1080 (Full HD) |
| Display technology | LCD (single panel) | 3LCD |
| Light source | LED | Lamp |
| Brightness (ANSI / ISO lumens) | 6,500 lm | 4,000 lm |
| Contrast ratio (dynamic / claimed) | — | 16,000:1 |
| Lens & placement | ||
| Throw ratio | — | 1.21:1 |
| Throw ratio (zoomed in) | — | 1.45:1 |
| Throw type | — | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | — | 2.68 m |
| Smallest image size | — | 34″ |
| Largest image size | — | 337″ |
| Optical zoom | — | 1.2× |
| Lens shift | — | None |
| Autofocus | — | Yes |
| Keystone correction | — | Yes |
| Automatic keystone correction | — | Yes |
| Sound | ||
| Built-in speakers (total output) | — | 2 W |
| Smart & streaming | ||
| Wi-Fi | — | Yes |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | No | Yes |
| VGA input | No | No |
| Audio output | No | Yes |
| Battery, power & lifetime | ||
| Power consumption | — | 284 W |
| Light source life | 6,500 h | 6,000 h |
| Light source life (eco mode) | — | 12,000 h |
| Design & noise | ||
| Fan noise | — | 37 dB |
| Fan noise (eco mode) | — | 28 dB |
| Weight | — | 2.7 kg |
| Width | — | 302 mm |
| Height | — | 92 mm |
| Depth | — | 252 mm |
| Colours | White | White |
