Acer
Acer UL5630 WUXGA Ultra Short Throw Laser Projector
WUXGA4500 lm70-381"
£2,838.96inc. VAT
In stock
UK stockOptoma
Optoma ZK420UST 4K UHD Ultra Short Throw Laser Projector
£2,837.83inc. VAT
£2,364.86 ex. VAT
In stock, dispatched within 10 working days
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Bought in the UK, backed in the UKWhy it matters →
- In UK stock, ships from the UK
- UK manufacturer warranty
- UK-based engineers
- No import duty or customs charges
- GBP pricing, UK VAT invoices
Key specifications
Display technologyDLP
Resolution4K UHD (3840x2160)
ISO 21118 brightness4200 lm
Contrast ratio1,800:1
Contrast ratio - dynamic500,000:1
Native aspect ratio16:9
Aspect ratio - compatible4:3, 16:9
Input compatibility4K, HDR and HLG compatible
Description
The Optoma ZK420UST is a compact 4K UHD ultra short throw laser projector delivering 4,200 ISO lumens. The 0.25:1 lens projects a 100 inch image from less than 12 inches away, so the projector sits directly beneath the screen and presenters do not walk into the beam or cast shadows.
Native resolution is 3840x2160 with a 500,000:1 dynamic contrast ratio, and it is 4K, HDR and HLG compatible. The DuraCore laser light source is rated for 30,000 hours of maintenance-free operation, and the optical engine is IP6X-certified against dust ingress.
For managed estates, OMS Cloud provides centralised management, broadcasting and reporting across multiple units. Control runs over HDBaseT 4K, RJ45 and RS232, and connectivity includes dual HDMI 2.0 with one eARC port.
The eco-friendly chassis uses up to 50% post-consumer recycled plastics with packaging up to 97% recyclable. Image size is fixed between 100 and 150 inches by the ultra short throw lens.
Key features
Ultra short throw
0.25:1 lens throws a 100 inch image from under 12 inches, eliminating presenter shadows.
Bright 4K UHD laser projection
4,200 ISO lumens at native 3840x2160 with 4K, HDR and HLG compatibility.
OMS Cloud management
Centralised management, broadcasting and reporting across multiple units.
30,000 hour maintenance-free operation
DuraCore laser rated for 30,000 hours with an IP6X-certified dust-resistant engine.
Professional connectivity
HDBaseT 4K, RJ45 and RS232 control with dual HDMI 2.0 including eARC.
Eco-friendly design
Chassis uses up to 50% post-consumer recycled plastics, packaging up to 97% recyclable.
Technical specifications
Choose a section to view its specifications.
Display (8)
- Display technology
- DLP
- Resolution
- 4K UHD (3840x2160)
- ISO 21118 brightness
- 4200 lm
- Contrast ratio
- 1,800:1
- Contrast ratio - dynamic
- 500,000:1
- Native aspect ratio
- 16:9
- Aspect ratio - compatible
- 4:3, 16:9
- Screen size
- 2.54m - 3.81m (100in - 150in) diagonal
Connectivity (3)
- Input compatibility
- 4K, HDR and HLG compatible
- Inputs
- 1x HDMI 2.0, 1x HDMI 2.0 (eARC), 1x USB service shared with USB-A power
- 3D support
- Full 3D
Certifications & Warranty (1)
- Warranty
- 36 months
General (12)
- Light source
- DuraCore Laser
- Laser life
- 30000 hours
- Ingress protection
- IP6X
- Throw type
- Ultra short throw
- Throw ratio
- 0.25:1
- Projection distance
- 0.614m - 0.894m
- Zoom type
- Fixed
- Native offset
- 120%
- Keystone correction
- 5 degrees horizontal and vertical
- Control
- HDBaseT 4K, RJ45, RS232, OMS Cloud
- Noise level
- 29 - 34 dB
- Security
- Security bar, Kensington lock
Complete your setup
Optional extras that fit this product. Tick anything you need and it joins the same basket — or add this product on its own from the buy box above.
Choose a Mount
Choose a Screen
Video Conferencing
No video conferencing options found in our catalogue.
Professional Installation
Want it installed by our AV experts? We offer professional on-site installation including mounting, cable management, and system configuration.
Your Configuration
Optoma ZK420UST 4K UHD Ultra Short Throw Laser Projector × 1£2,837.83
Total£2,837.83
inc. VAT
1
Documents
Delivery & returns
Estimated delivery 23 Sept - 27 Sept. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.
Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.
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, with no card payment required. Purchase orders and credit terms are for education customers only.
All transactions are processed over an encrypted, secure checkout.
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