At a glance
- Lamp Module Specifications
- Compatible Models: 6 Sony Projectors
- Three Key Points to Verify Before Purchasing
- What the Zorsika PRO Series Offers You
- Routine Maintenance to Extend Lamp Life
- Frequently Asked Questions
- Q: My projector isn't in the list of 6 models above. Can I use the LMP-C281?
- Q: How should I choose between original packaged, original bare, and compatible lamps?
- Q: Why choose Zorsika PRO instead of the original?
- Q: What should I do if the projector shows "lamp not recognized" after replacement?
- Q: Is there an installation tutorial for the LMP-C281?
- Q: What is the warranty period for the lamp?
- Related Inquiry Links
- Purchase Inquiries
Sony LMP-C281 projector lamp, UHP 280W, reflector size 50X50D, socket E19.7, compatible with VPL-F535H, VPL-CH373, VPL-CH378, VPL-CH370 and 6 Sony projector models. Zorsika equivalent model LMP-C281.


When replacing a Sony projector lamp, the most time-consuming step is often not the physical installation but confirming the model number matches. The LMP-C281 covers 6 Sony projector models. This article clearly lists the specifications, compatible models, and key points to verify.
Sony LMP-C281 Projector LampLamp Module Specifications
| Original Lamp Module Model | LMP-C281 |
| Zorsika Equivalent Model | LMP-C281 |
| Compatible Brand | Sony |
| Lamp Module Specification | UHP280W 0.8 E19.7 |
| Lamp Type | UHP |
| Rated Power | 280W |
| Arc Gap | 0.8mm |
| Socket/Base | E19.7 |
| Reflector Size | 50X50D |
| Projection Technology | LCD |
| Number of Compatible Models | 6 models |
The above specifications are sourced from the Zorsika product database. For the complete technical datasheet, please contact our sales team.
Compatible Models: 6 Sony Projectors
The following verified compatible Sony projector models for the LMP-C281 are listed below, separated by commas:
VPL-F535H,VPL-CH373,VPL-CH378,VPL-CH370,VPL-CH375,VPL-F530H
Note: Projectors from the same generation often share the same lamp module. For models not listed, please contact Zorsika technical support for confirmation.
Three Key Points to Verify Before Purchasing
- Verify the Nameplate Model: Open the projector's lamp door and check that the model on the lamp label matches the LMP-C281 exactly. Some Sony models may have suffixes like -V or +, but the lamp module is usually interchangeable. If unsure, take a photo of the nameplate and send it to Zorsika technical support for confirmation.
- Confirm the Lamp Form: The same model is available in four forms: original packaged, original bare, compatible, and used. These forms differ significantly. An original bare lamp consists of an original arc tube with a third-party housing and typically offers the best overall value. Be sure to specify the desired form clearly on your order to avoid disputes upon delivery.
- Verify Physical Specifications: The reflector size (50X50D), socket/base (E19.7), and arc gap must match your original lamp. Any discrepancy could prevent installation or proper ignition.
What the Zorsika PRO Series Offers You
The LMP-C281 is a high-volume model. The Zorsika PRO Series implements consistency control on the arc tube according to original factory parameters and adds an additional factory ignition test, ensuring better brightness and stability.
- Specification Alignment: Power, arc gap, and reflector size are matched item by item against original factory parameters.
- Individual Testing: Each lamp is individually ignition-tested before shipment, ensuring brightness and stability.
- Warranty Commitment: Lamps come with a 180-day warranty covering normal use failures excluding human-induced damage.
- Stable Supply: Supports bulk procurement and project-based supply.
In summary: If you want original factory quality but also seek a more hassle-free overall experience, the Zorsika PRO Series projector lamp is designed exactly for this scenario.
Note: Performance aspects like brightness and lifespan are significantly influenced by projector condition, operating environment, and cooling. Zorsika does not make uniform numerical promises. We recommend testing 1-2 sample units before bulk procurement.
Routine Maintenance to Extend Lamp Life
- Clean Dust Regularly: Dust buildup on air intakes and filters directly raises the lamp's operating temperature. In dusty environments, clean every 1-2 months; in normal office environments, every 3-6 months.
- Utilize Eco Mode: Prioritize eco mode when brightness is sufficient, as it reduces the thermal load on the lamp.
- Avoid Frequent On/Off Cycles: Thermal cycling is a major cause of lamp degradation. If the projector won't be used for a short period, use the blank/AV mute function instead of repeatedly cutting power.
- Proper Shutdown Procedure: After powering off, wait for the cooling fan to stop completely before disconnecting power. Cutting power while the lamp is hot causes rapid cooling, a common cause of lamp rupture.
- Reset Lamp Timer After Replacement: After installing a new lamp, be sure to reset the lamp timer in the projector menu. Otherwise, the projector will continue to alert based on the old usage time.
Frequently Asked Questions
Q: My projector isn't in the list of 6 models above. Can I use the LMP-C281?
A: The list represents verified models but is not exhaustive. Sony projectors from the same generation often share lamp modules. Send photos of the projector's nameplate and original lamp label to Zorsika technical support, and we can help confirm compatibility.
Q: How should I choose between original packaged, original bare, and compatible lamps?
A: If you prioritize brightness stability and long-term reliability, the Zorsika PRO Series lamp is the top choice. It matches original parameters item by item, undergoes individual ignition testing before shipment, offers performance comparable to the original, provides a more hassle-free experience overall, and includes a 180-day warranty. It is also well-suited for standard commercial, educational, and conference room use. While other alternative lamps may have lower upfront costs, the arc tube source and quality control can vary significantly, leading to higher risks of brightness degradation and shortened lifespan. They are only recommended for temporary backup units.
Q: Why choose Zorsika PRO instead of the original?
A: The core philosophy of the Zorsika PRO Series lamp is "original parameters, independent quality control." Power, arc gap, and reflector size are benchmarked against the original item by item, but an additional individual ignition test is performed before shipment, and a 180-day warranty is provided. Compared to the original, it offers a more hassle-free overall experience; compared to other alternatives, its quality control is more consistent.
Q: What should I do if the projector shows "lamp not recognized" after replacement?
A: First, confirm whether the lamp timer has been reset, as most of these alerts are caused by an uncleared timer. If the error persists after resetting, contact Zorsika technical support. We provide reset instructions and troubleshooting guidance for the corresponding models.
Q: Is there an installation tutorial for the LMP-C281?
A: Yes. The lamp door location and installation steps for these Sony models are essentially the same. Contact Zorsika sales to obtain illustrated or video tutorials for your specific model.
Q: What is the warranty period for the lamp?
A: The Zorsika PRO Series projector lamp comes with a 180-day warranty covering normal use failures excluding human-induced damage (such as lamp rupture or abnormal early light decay). Brightness degradation within standard ranges is considered normal wear and tear and is not covered by the warranty.
Related Inquiry Links
- Zorsika Technical Support Center
- Projector Brand and Compatible Model Lookup
- Projector Lamp / Lens / Air Filter Product Library
Purchase Inquiries
For consultation on the Sony LMP-C281, bulk procurement options, or the complete list of compatible models, please contact us through the following channels:
- Website: www.zorsika.com
- Phone: 0086-20-38551187
- Email: sales@zorsika.com
- Business Hours: Monday to Friday, 9:00-18:00
The lamp module models, specifications, and compatible model data in this article are sourced from the Zorsika product database. Data is continuously updated and subject to final confirmation upon inquiry.