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- EH-TW840 vs Photon Beam PK52
Epson EH-TW840 vs Optoma Photon Beam PK52
What EH-TW840 does better (5) and where Photon Beam PK52 wins (7) — every spec side by side.
vs
5.6Picture7.2
8.7Setup & placement3.9
3.6Noise, lifetime & portability6.6
Dimensions
Size comparison
EH-TW840Photon Beam PK52
| EH-TW840 | Photon Beam PK52 | Difference | |
|---|---|---|---|
| Height | 92 mm | 130 mm | −38 mm |
| Width | 302 mm | 238 mm | +64 mm |
| Depth | 252 mm | 215 mm | +37 mm |
| Weight | 2.7 kg | 5 kg | −2.3 kg |
Drawn to the same scale from the official dimensions (front and side).
Why is EH-TW840 better than Photon Beam PK52?
- Automatic keystone correctionYes · Photon Beam PK52: No
- Brightness (ANSI / ISO lumens)4,000 lm vs 3,500 lm+14%
- Ethernet (LAN)Yes · Photon Beam PK52: No
- Weight2.7 kg vs 5 kg+85%
- Largest image size337″ vs 300″+12%
Why is Photon Beam PK52 better than EH-TW840?
- Resolution (on screen)1920 × 1080 (Full HD) vs 3840 × 2160 (4K UHD)
- Built-in speakers (total output)2 W vs 15 W7.5×
- Light source life6,000 h vs 30,000 h5×
- Contrast ratio (dynamic / claimed)16,000:1 vs 1,500,000:193.8×
- Power consumption284 W vs 150 W+89%
- Fan noise37 dB vs 33 dB+12%
- Optical zoom1.2× vs 1.3×+8%
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 | Lamp | Laser |
| Brightness (ANSI / ISO lumens) | 4,000 lm | 3,500 lm |
| Contrast ratio (dynamic / claimed) | 16,000:1 | 1,500,000:1 |
| HDR support | — | No |
| 3D playback | — | Yes |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Lens & placement | ||
| Throw ratio | 1.21:1 | 1.21:1 |
| Throw ratio (zoomed in) | 1.45:1 | 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 | 2.68 m | 2.68 m |
| Smallest image size | 34″ | 28″ |
| Largest image size | 337″ | 300″ |
| Optical zoom | 1.2× | 1.3× |
| Lens shift | None | None |
| Autofocus | Yes | — |
| Keystone correction | Yes | Yes |
| Automatic keystone correction | Yes | No |
| Sound | ||
| Built-in speakers (total output) | 2 W | 15 W |
| Smart & streaming | ||
| Wi-Fi | Yes | — |
| Connectivity | ||
| HDMI inputs | 2 | 2 |
| HDMI version | — | 2 |
| USB port | Yes | Yes |
| Ethernet (LAN) | Yes | No |
| VGA input | No | No |
| Audio output | Yes | Yes |
| Battery, power & lifetime | ||
| Power consumption | 284 W | 150 W |
| Light source life | 6,000 h | 30,000 h |
| Light source life (eco mode) | 12,000 h | — |
| Design & noise | ||
| Fan noise | 37 dB | 33 dB |
| Fan noise (eco mode) | 28 dB | 28 dB |
| Weight | 2.7 kg | 5 kg |
| Width | 302 mm | 238 mm |
| Height | 92 mm | 130 mm |
| Depth | 252 mm | 215 mm |
| Colours | White | Black |
