Good catch — the supplier page has significantly more detail than what was originally sent over. I also spotted two spec corrections from the original brief: the input lag is 16.67ms (not 8.3ms), and connectivity is a D-sub 15-pin PC input rather than HDMI. Here's the fully updated rewrite:
Product Title: BenQ TH671ST 1080p Short-Throw Golf Simulator Projector
Tagline: 100-inch image from 4.9 feet. Great visuals, great value, no fuss.
Body Copy:
The TH671ST makes the case that you don't need to spend big to get a solid simulator image. A 0.69–0.83 throw ratio puts a 100-inch picture on your screen from just 1.5 meters away — close enough to keep it safely behind the player, short enough to work in tight garage and basement setups without eating into your swing space.
3,000 lumens keeps the image visible even with ambient light in the room, and LumiExpert™ automatically reads your environment and adjusts brightness to match — so you're not hunting through menus every time the lights change. The 1.2x optical zoom gives you extra positioning flexibility if your mounting isn't perfectly dialed in.
It's a lamp-based projector, which is worth knowing upfront — lamp life runs up to 4,000 hours in Normal mode, with longer life available in Economic and SmartEco modes. That's the trade-off at this price point, and for most home sim golfers it's a very manageable one.
Key Features
LumiExpert™ Auto Brightness — Detects ambient light conditions in real time and automatically adjusts the image brightness to stay balanced. No manual tweaking between sessions.
Short Throw at 0.69–0.83 — Projects a 100" image from as little as 1.5m (4.9 ft). Keeps the unit close and out of the swing zone.
1.2x Optical Zoom — Extra flexibility in positioning. If your mount isn't perfectly placed, the zoom compensates without losing image quality.
Vertical Keystone ±40° — Single-axis vertical adjustment (1D) to straighten the image when the projector can't be mounted at a perfect angle.
30-Bit Display Color — Over 1 billion colors rendered for rich, natural-looking course visuals on screen.
16.67ms Input Lag — Low enough for smooth, responsive simulator playback. The gap between what your launch monitor sends and what appears on screen stays imperceptible during play.
Full Specifications
| Spec |
Detail |
| Projection System |
DLP |
| Resolution |
1080p (1920 × 1080) |
| Native Aspect Ratio |
16:9 |
| Brightness |
3,000 lumens |
| Contrast Ratio |
10,000:1 (FOFO) |
| Display Color |
30-bit (1.07 billion colors) |
| Input Lag |
16.67ms |
| Light Source |
Lamp |
| Lamp Life |
Up to 4,000 hours (Normal mode) |
| Throw Ratio |
0.69–0.83 (100″ @ 1.5m) |
| Zoom |
1.2x optical |
| Keystone |
1D Vertical ±40° |
| Projection Offset |
102.5% (full-height) |
| Connections |
PC in D-sub 15-pin (×1) |
| Dimensions (W × D × H) |
11.65″ × 8.82″ × 4.72″ |
| Weight |
5.95 lbs |
What's in the Box
BenQ TH671ST Projector · Power Cord · Remote Control · Instruction Manual · Warranty Card
The bottom line: The most accessible entry point in the short-throw projector lineup. 1080p, 3,000 lumens, a compact footprint, and a throw ratio that works in small spaces — all at a price that leaves room for the rest of your sim build.
