BenQ LH650 vs Optoma EH412ST
Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.
 BenQ LH650MSRP $1,449 | Optoma EH412ST | |
|---|---|---|
| Display system | ||
| Imaging technology | DLP | DLP |
| Technology brand | DLP | DLP |
| Number of imaging devices | 1 | 1 |
| Chip / panel diagonal | 0.65 in | 0.65 in |
| Native aspect ratio | 16:9 | 16:9 |
| Native resolution | 1920 × 1080 | 1920 × 1080 |
| Optical system description | Blue laser diodes with a phosphor wheel and a six-segment colour wheel | — |
| Colour wheel segments | 6 | 6 segments: R, Y, G, C, W, B |
| Optics | ||
| Throw ratio | 1.15–1.5:1 | 0.5:1 |
| Throw reference point | Lens | — |
| Projection distance table | 30″: 0.76–1 m · 40″: 1.02–1.33 m · 50″: 1.27–1.66 m · 60″: 1.53–1.99 m · 70″: 1.78–2.32 m · 80″: 2.04–2.66 m · 90″: 2.29–2.99 m · 100″: 2.55–3.32 m · 110″: 2.8–3.65 m · 115″: 2.93–3.82 m · 120″: 3.06–3.99 m · 130″: 3.31–4.32 m · 140″: 3.56–4.65 m · 150″: 3.82–4.98 m · 160″: 4.07–5.31 m · 170″: 4.33–5.65 m · 180″: 4.58–5.98 m · 190″: 4.84–6.31 m · 200″: 5.09–6.64 m · 210″: 5.35–6.97 m · 220″: 5.6–7.31 m · 230″: 5.86–7.64 m · 240″: 6.11–7.97 m · 250″: 6.37–8.3 m · 260″: 6.62–8.63 m · 270″: 6.87–8.97 m · 280″: 7.13–9.3 m · 290″: 7.38–9.63 m · 300″: 7.64–9.96 m | 37″: 0.41 m · 40″: 0.44 m · 50″: 0.55 m · 60″: 0.66 m · 70″: 0.77 m · 80″: 0.88 m · 90″: 0.99 m · 100″: 1.1 m · 110″: 1.22 m · 120″: 1.33 m · 130″: 1.44 m · 140″: 1.55 m · 150″: 1.66 m · 160″: 1.77 m · 170″: 1.88 m · 180″: 1.99 m · 190″: 2.1 m · 200″: 2.21 m · 210″: 2.32 m · 220″: 2.43 m · 230″: 2.54 m · 240″: 2.65 m · 250″: 2.76 m · 260″: 2.87 m · 270″: 2.98 m · 280″: 3.09 m · 290″: 3.2 m · 300″: 3.31 m |
| Zoom type | Optical | Digital |
| Zoom ratio | 1.3× | — |
| Focus | Manual | Manual |
| Fixed offset | 106% | 116% |
| Focal length | 16.88–21.88 mm | 7.42 mm |
| F-number | 2.59–2.87 | 2.8 |
| Interchangeable lens | — | No |
| Image size range | 30–300 in | 36.2–308 in |
| Vertical keystone | -30–30° | -40–40° |
| Horizontal keystone | -30–30° | — |
| Corner / warp correction | 4pt | — |
| Light source | ||
| Light source type | Laser (phosphor) | Lamp |
| Light source detail | Laser | — |
| Lamp wattage | — | 240 W |
| Light source life | Normal: 20,000 h · Eco: 20,000 h · Smarteco: 20,000 h | Bright: 4,000 h · Dynamic: 12,000 h · Eco: 10,000 h · Eco plus: 15,000 h |
| Warm-up time | 10 s | — |
| Cool-down time | 2 s | — |
| Light-source dimming | Continuous | — |
| Brightness | ||
| ISO light output | 4,000 lm | — |
| ANSI lumens | 4,000 lm | 4,000 lm |
| Brightness uniformity (centre-to-corner) | — | 70% |
| Contrast & black level | ||
| Dynamic contrast | 3,000,000:1 | 50,000:1 |
| Dynamic light control | Laser dimming | — |
| Colour | ||
| Rec.709 gamut | 92% | — |
| Gamut metric | Coverage | — |
| Gamma / EOTF presets | 2.2, 2.4, 2.6 | — |
| Bit depth / 'number of colours' | 30 bit | 30 bit |
| Calibration & picture control | ||
| Colour management system | 6-axis | 6-axis |
| ISF certified | — | Yes |
| Picture mode memories | 2 | — |
| HDR | ||
| HDR formats | HDR10, HLG | HDR10 |
| Tone mapping type | Adjustable | — |
| Motion & gaming | ||
| Max refresh rate | 1920×1080: 120 Hz · 3840×2160: 60 Hz | 1920×1080: 120 Hz |
| Input lag (rated) | 1920×1080 @ 120 Hz: 8.3 ms | 1920×1080 @ 60 Hz: 16 ms · 1920×1080 @ 120 Hz: 8.4 ms |
| Audio | ||
| Speaker power | 10 W | 10 W |
| Speaker count | 1 | 1 |
| Audio channels | Mono | — |
| Audio outputs | 3.5 mm | 3.5 mm |
| Inputs, control & connectivity | ||
| Max input signal | 3840 × 2160 | 3840 × 2160 |
| HDMI port count | 2 | 2 |
| HDMI ports (feature-level) | HDMI-1: HDMI 2.0b, HDCP 2.2; HDMI-2: HDMI 2.0b, HDCP 2.2 | HDMI 1: HDMI 2.0, HDCP 2.2; HDMI 2 / MHL: HDMI 1.4, HDCP 2.2 |
| Audio input terminals | — | 3.5 mm |
| Horizontal scan frequency | 15–135 kHz | 15.38–91.15 kHz |
| Vertical scan frequency | 23–120 Hz | 50–85 Hz |
| USB-C video (DP Alt Mode) | Yes | — |
| VGA input | No | Yes |
| RS-232 | Yes | Yes |
| LAN control | No | — |
| PJLink class | None | — |
| Wi-Fi | None | — |
| Ethernet | No | — |
| 3D | ||
| 3D support | Yes | Yes |
| 3D sync method | — | DLP-Link |
| 3D formats | Frame sequential, Frame packing, Side-by-side, Top-bottom | Frame packing, Side-by-side, Top-bottom |
| Setup automation | ||
| Auto keystone | Yes | — |
| Acoustic noise | ||
| Fan noise (sound pressure) | Normal: 34 dB(A) · Eco: 28 dB(A) | Typical: 26 dB(A) · Max: 28 dB(A) |
| Environment & power | ||
| Operating temperature | 0–40°C | 5–40°C |
| Operating humidity | 10–90%RH | 10–85%RH |
| Altitude / high-altitude mode | 3,000 m | 3,000 m |
| High-altitude mode | Yes | Yes |
| Operating orientations | Table, Ceiling, Rear | Table, Ceiling, Rear |
| Rated voltage | 100–240 V | 100–240 V |
| Rated frequency | 50–60 Hz | 50–60 Hz |
| Power consumption (max) | 275 W | 285 W |
| Power consumption by mode | Typical: 200 W | Bright typical: 230 W · Bright max: 253 W · Eco typical: 190 W · Eco max: 209 W |
| Standby power | 0.5 W | 0.5 W |
| Physical & installation | ||
| Width | 304 mm | 316 mm |
| Depth | 225 mm | 244 mm |
| Height | 112 mm | 115 mm |
| Weight | 2.9 kg | 3 kg |
| Ingress protection | IP5X | — |
| Colours / finishes | White | White |
| Sealed optical engine | Yes | — |
| Air filter | None | — |
| Safety & compliance | ||
| Photobiological risk group | RG2 | RG2 |
| Laser product class | Class 1 | — |
| Safety & market certifications | — | FCC |
| Support & ownership | ||
| Warranty | 🇺🇸 US 3 yr | 🇺🇸 US 2 yr |
| Light-source warranty | — | 90 days |
| User manual | https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/LH650/UM_EN_240620171822.pdf | https://www.optomausa.com/ContentStorage/Documents/2aef4a4a-ad89-4d77-8b8a-d395179d3957.pdf |
| In the box | ||
| Box contents | Projector, Remote control with batteries, Power cord, Quick start guide, Warranty card, Regulatory statements, HDMI cable | Projector, Power cord, Remote, Batteries, Quick start guide |
| Remote type | IR | IR |