At a glance
- Where It Works: List of 4 Compatible Models (with Specifications)
- Specifications
- FAQ
- Q: What if the lens doesn't match the picture size?
- Q: My projector isn't in the list of 4 models above — can I use WE431?
- Q: Can the lens replace the original one?
- Q: Why choose Zorsika instead of the original manufacturer?
- Q: How long is the lens warranty?
- What Zorsika Lenses Offer You
- What to Watch Out for When Changing Lenses
- Related Query Links
- Purchasing Inquiries
Zorsika WE431 projector lens, matched to original optical specs, compatible with 4 BenQ projectors: LU935, LK935, LU935ST, LK936ST.
Picture too small or installation distance not enough? A different lens can solve it. WE431 fits 4 BenQ models — see the list below.

Where It Works: List of 4 Compatible Models (with Specifications)
The following are verified compatible models for WE431 (BenQ projectors), with brightness, resolution, and zoom ratio listed for each:
| Projector Model | Brightness | Resolution | Zoom Ratio |
|---|---|---|---|
| LU935 | 6000 lumens | WUXGA 1920×1200 | 1.6X |
| LK935 | 5500 lumens | 4K (3840×2160) | 1.6X |
| LU935ST | 5500 lumens | WUXGA 1920×1200 | 1.1X |
| LK936ST | 5100 lumens | 4K (3840×2160) | 1.1X |
Note: Brightness, resolution, and zoom ratio are taken from the Zorsika product database (refer to the model nameplate/manual for accuracy); lens compatibility is based on the chassis interface and optical structure. For models not listed, contact Zorsika technical support for confirmation.
Specifications
| Lens Model | WE431 |
| Compatible Brand | BenQ |
| Compatible Model Brightness | 5100–6000 lumens |
| Compatible Model Resolution | WUXGA 1920×1200, 4K (3840×2160) |
| Zoom Ratio | 1.6X, 1.1X |
| Throw Ratio | 0.7-0.85:1 |
| Applicable Panel Size | 0.48 inch |
| Number of Compatible Models | 4 |
The above specifications are from the Zorsika product database. For the complete technical datasheet, contact sales to request it.
FAQ
Q: What if the lens doesn't match the picture size?
A: First confirm the model's lens interface and optical axis position, then select a lens with the corresponding throw ratio based on your actual installation distance. If unsure, send your installation distance and screen size to Zorsika technical support and we'll help you choose.
Q: My projector isn't in the list of 4 models above — can I use WE431?
A: The list covers verified models, but it doesn't represent all of them. Engineering projectors of the same brand and generation often share the same lens interface. For peace of mind, take photos of the nameplate and the original lens and send them to Zorsika technical support for confirmation.
Q: Can the lens replace the original one?
A: The lens is the core of the projector's optical path and directly determines clarity and color. Zorsika lenses (model numbers as listed in the specifications table above) are benchmarked item by item against original optical parameters (focal length, throw ratio, lens group), with consistent lens coating processes for sharp imaging and no soft edges. Ordinary replacement lenses often use standard glass elements with insufficient coating layers, resulting in visible brightness loss and color shift. For engineering and exhibition applications, Zorsika is recommended.
Q: Why choose Zorsika instead of the original manufacturer?
A: Zorsika lenses are produced according to original optical drawings, with lens groups, coatings, and throw ratios benchmarked item by item, and each unit undergoes resolving power testing before leaving the factory. Compared to the original manufacturer, lead times are shorter and overall value is better; compared to other replacement lenses, optical quality is backed by data.
Q: How long is the lens warranty?
A: All Zorsika projector lenses come with a 12-month warranty. For normal use and non-human-caused damage (such as impact, water damage, or unauthorized disassembly), you can contact after-sales service directly. The warranty period is based on the date on the shipping document.
What Zorsika Lenses Offer You
For engineering lenses like WE431, Zorsika benchmarks item by item against original optical parameters (focal length, throw ratio, lens group), with consistent lens coating processes for sharp imaging and no soft edges — ready to use upon installation.
Zorsika's equivalent replacement model fits BenQ LU935, LK935, LU935ST, LK936ST and other 4 models; enter WE431 in the Zorsika official website query system to find the complete model compatibility list.
- Optical Benchmarking: Focal length, throw ratio, and lens group matched to original parameters
- Resolving Power Testing: Each unit tested before shipment, with traceable MTF data
- Coating Process: Lens coatings at the same level as the original, reducing light loss
- Stable Supply: Supports bulk purchasing and project supply
In short: the lens is the optical core — don't gamble on picture quality to save a few dollars. Zorsika projector lenses are produced according to original drawings and offer better overall value.
Note: Actual imaging performance is affected by the projector's condition and installation environment. Before bulk purchasing, we recommend getting 1 unit for actual testing.
What to Watch Out for When Changing Lenses
- Power off before changing the lens: Before removing or installing the lens, be sure to shut down and wait for the cooling fan to stop, to avoid damaging the interface with live power.
- Don't touch the lens elements: Fingerprints and oil stains directly affect image quality. Hold the lens by the barrel, not the glass. For dust, use an air blower gently — don't wipe dry with a cloth.
- Focus first, then tighten: After installation, do a focus test first, then tighten the fixing screws, to avoid picture drift from loosening over long-term use.
- Keep the interface clean: Dust buildup on the mount and contacts can cause poor contact. Cleaning them while changing the lens is a safer practice.
Related Query Links
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Lookup
- Projector Lamp / Lens / Air Filter Product Library
Purchasing Inquiries
For Zorsika WE431 solution consultation, project proposals, or the complete model compatibility list, contact us via:
- Website: www.zorsika.com
- Phone: 0086-20-38551187
- Email: sales@zorsika.com
- Business Hours: Monday to Friday, 9:00-18:00
The lens model and compatible model data in this article are from the Zorsika product database. Data is continuously updated; please confirm with an actual quotation.