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- HL6521G vs LSD400HD
Acer HL6521G vs ViewSonic LSD400HD
What HL6521G does better (0) and where LSD400HD wins (4) — every spec side by side.
Why is HL6521G better than LSD400HD?
HL6521G has no measurable advantages in this pair.
Why is LSD400HD better than HL6521G?
- Light source life4,000 h vs 30,000 h7.5×
- Brightness (ANSI / ISO lumens)4,000 lm vs 4,400 lm+10%
- HDMI inputs1 vs 22×
- Audio outputNo · HL6521G: Yes
Specifications
Side by side
| Picture | ||
| Resolution (on screen) | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Native panel resolution | 1920 × 1080 (Full HD) | 1920 × 1080 (Full HD) |
| Display technology | DLP | DLP |
| Light source | — | Laser |
| Brightness (ANSI / ISO lumens) | 4,000 lm | 4,400 lm |
| Contrast ratio (dynamic / claimed) | — | 3,000,000:1 |
| Gaming | ||
| Maximum refresh rate | — | 120 Hz |
| Lens & placement | ||
| Throw ratio | — | 1.48:1 |
| Throw ratio (zoomed in) | — | 1.62:1 |
| Throw type | — | Standard throw (1.0:1 and longer) |
| Distance for a 100″ 16:9 image | — | 3.28 m |
| Smallest image size | — | 30″ |
| Largest image size | — | 300″ |
| Lens shift | — | None |
| Keystone correction | — | Yes |
| Automatic keystone correction | — | No |
| Connectivity | ||
| HDMI inputs | 1 | 2 |
| HDMI version | — | 2 |
| USB port | No | Yes |
| Ethernet (LAN) | No | No |
| VGA input | No | No |
| Audio output | No | Yes |
| Battery, power & lifetime | ||
| Light source life | 4,000 h | 30,000 h |
| Light source life (eco mode) | — | 20,000 h |
| Design & noise | ||
| Fan noise | — | 32 dB |
| Fan noise (eco mode) | — | 27 dB |
| Weight | — | 3 kg |
| Width | — | 280 mm |
| Height | — | 129 mm |
| Depth | — | 216 mm |
| Colours | White | White |
