ViewSonic LSD400HD-ST 4,000 ANSI Lumens 1080p Short Throw Laser Installation Projector
- In UK stock, ships from the UK
- UK manufacturer warranty
- UK-based engineers
- No import duty or customs charges
- GBP pricing, UK VAT invoices
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Description
The LSD400HD-ST brings ViewSonic's Luminous Superior lamp-free technology to short-throw installations, using 3rd generation laser phosphor light source and a 0.65" DMD DLP chip to deliver 4,000 ANSI lumens at native 1080p Full HD with a 3,000,000:1 contrast ratio. Its 0.5 throw ratio produces a 100" image from just 1.1 metres, making it ideal for space-constrained installations such as golf simulators, exhibition stands and retail displays, while still scaling up to 300" for larger venues. Horizontal/vertical keystone with 4-corner correction and 360-degree projection allow flexible mounting angles. The lamp-free design cuts power consumption by up to 59% versus comparable lamp projectors and removes routine lamp replacement, and the sealed IP6X optical engine keeps the unit dust-resistant for long-term, low-maintenance operation. Dual HDMI inputs, RJ45 LAN and RS232 support integration into managed AV systems, including Crestron and Q-SYS control.
Key features
Projects a 100" image from only 1.1 m, ideal for tight installation spaces.
3rd-gen laser phosphor light source rated for up to 30,000 hours.
Fine-tunes colour output for golf simulator and sports-simulation screens.
Filter-free, dust-resistant design for low-maintenance 24/7 use.
Technical specifications
Throw distance guide
With its 0.5:1 throw ratio, here's how far the projector needs to sit from the screen for common 16:9 image sizes. Try our throw distance calculator for your exact room.
| Image size | Image dimensions | Lens distance |
|---|---|---|
| 60" | 1.33 m × 0.75 m | 0.7 m |
| 80" | 1.77 m × 1.00 m | 0.9 m |
| 100" | 2.21 m × 1.25 m | 1.1 m |
| 120" | 2.66 m × 1.49 m | 1.3 m |
| 150" | 3.32 m × 1.87 m | 1.7 m |
Planning from a real wall? Use the projector room planner to upload a photo, preview the image to scale and find projectors that fit within your maximum available space.
Distances are lens-to-screen, calculated from the manufacturer's stated throw ratio; allow for lens shift and mounting hardware. Always confirm against the manufacturer's installation guide before fixing mounts.
See it on your wall, to scale
Choose a picture size, then upload a wall photo—or scan the QR code and take it on your phone. We'll show the projected picture at its real size.
Documents
Frequently asked questions
How bright is the LSD400HD-ST and what's it best suited to?
It delivers 4,000 ANSI lumens (4,800 lm centre) at native 1080p Full HD resolution with a 3,000,000:1 contrast ratio, from a lamp-free laser phosphor light source.
How close to the screen can it be installed?
With a 0.5 short-throw ratio, it produces a 100-inch image from just 1.1 metres away, making it ideal for space-constrained installations such as golf simulators, exhibition stands and retail displays, while still scaling up to 300 inches for larger venues.
How long does the light source last, and what running-cost benefits does it bring?
The 3rd generation laser phosphor light source is rated for 20,000 hours in Normal mode (30,000 hours in Eco mode), and the lamp-free design cuts power consumption by up to 59% versus a comparable lamp projector while removing routine lamp replacement.
Is it durable for demanding environments?
Yes - the sealed IP6X optical engine keeps it dust-resistant for long-term, low-maintenance operation, and it supports 360-degree projection including portrait mode.
What connectivity does it have?
It has dual HDMI 2.0 inputs, RJ45 LAN, RS232 and USB-A, with Crestron and Q-SYS control certification for integration into managed AV systems.
What warranty and delivery apply?
The LSD400HD-ST comes with a 3-year (36-month) warranty. It's in stock at TopAV, so orders dispatch within 2 working days, with free UK delivery on orders over £100 (£9.95 below that).
Delivery & returns
Estimated delivery 29 Aug - 2 Sept. UK mainland delivery only — some large or made-to-order items may carry longer lead times.
Unused items in original packaging can be returned within 14 days of delivery. Faulty items are covered under manufacturer warranty.
Bought in the UK, backed in the UK
This item is in UK stock and ships to you from within the UK, so the order never crosses a customs border on its way to you.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us — not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts — no currency conversion and no surprises at the door.
Payment & security
Pay securely by card. Education customers can apply for a 30-day purchase order account.
Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice — no card payment required. Purchase orders and credit terms are for education customers only.
All transactions are processed over an encrypted, secure checkout.
Need help specifying this for your space?
Ask Andrew — he knows the full catalogue and can advise on installation, mounting and compatible AV systems.