Eiki 5811118436-SEK Projector Lamp for EIP-W4600 EK-402U (Eiki) EK-402UA (Eiki) DH976WT (Vivitek)

The Eiki 5811118436-SEK is a widely used lamp module for Eiki projectors, covering various scenarios such as business, education, and conference rooms. This article covers the specifications of this lamp, a list of 7 compatible projector models, and the most common pitfalls to watch out for when verifying your purchase.

Lamp Specifications

The above specifications are from the Zorsika product database. For the complete technical datasheet, please contact our sales team.

Compatible Models: 7 Eiki Projectors

The following verified compatible models for the 5811118436-SEK in Eiki projectors are listed below, separated by commas:

EIP-W4600, EK-402U (Eiki), EK-402UA (Eiki), DH976WT (Vivitek), DH978WT (Vivitek), MX2206K (Vivitek), DX831 (Vivitek)

Note: Projectors of the same generation often share the same lamp module. For models not listed, please contact Zorsika technical support for confirmation.

Before Ordering, Verify These Three Things

1. Check the Nameplate Model: Open the projector's lamp door and ensure the model on the lamp label matches 5811118436-SEK exactly. Some Eiki models may have suffixes like -V, +, etc., but the lamp module is usually interchangeable. If unsure, take a photo of the nameplate and send it to Zorsika technical support for confirmation.
2. Confirm the Lamp Type: The same model number can come in four different 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 exactly which type you need on your order to avoid disputes upon delivery.
3. Verify Physical Specifications: The reflector size (50X50D), socket/base (E20.9), and arc gap must match your original lamp. If any of these don't align, the lamp may not fit or may fail to ignite.

Why Choose Zorsika PRO for the Same Specifications

The Zorsika PRO series offers a replacement lamp module for the 5811118436-SEK with specifications identical to the original. Key parameters are matched point-by-point against the original, supporting project supply and bulk procurement with more controllable lead times.

• Specification Matching: Power, arc gap, and reflector size are matched point-by-point according to original parameters
• Individual Testing: Each lamp is individually tested for ignition before shipment, ensuring brightness and stability
• Warranty Commitment: 180-day warranty on the lamp; normal use failures not caused by human error are covered by after-sales service
• Stable Supply: Supports bulk procurement and project supply

In short: if you want original quality but prefer a more hassle-free overall experience, the Zorsika PRO series projector lamp is designed exactly for this scenario.

Note: Performance such as brightness and lifespan is significantly affected by the projector's condition, operating environment, and cooling. Zorsika does not make uniform numerical promises. We recommend testing 1-2 samples for ignition before bulk procurement.

Daily Maintenance to Extend Lamp Life

• Clean Dust Regularly: Dust buildup on the air intake and air filter directly increases the lamp's operating temperature. In dusty environments, clean every 1-2 months; in normal office environments, every 3-6 months.
• Utilize Eco Mode: This lamp supports dual power modes (310W / 245W). Switching to eco mode for everyday presentations can significantly reduce the thermal load on the lamp.
• Avoid Frequent On/Off Cycles: Thermal cycling is a major cause of lamp wear. If the projector won't be used for a short period, use the shutter/blank function instead of repeatedly cutting power.
• Proper Shutdown Procedure: Always wait for the cooling fan to stop completely before disconnecting power after shutdown. 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 hour counter in the menu; otherwise, the projector will continue to alert based on the old timer.

Frequently Asked Questions

Q: My projector isn't on the list of 7 models above. Can I use the 5811118436-SEK?

A: The list represents verified models, not an exhaustive list. Eiki projectors of the same generation often share lamp modules. Send a photo of your projector's nameplate and original lamp label to Zorsika technical support, and we can help confirm compatibility.

Q: How do 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 point-by-point, undergoes individual ignition testing before shipment, offers performance comparable to the original, provides a more hassle-free experience, and comes with a 180-day warranty. The PRO series is also the more reliable choice for standard business, education, and conference room use. While other compatible lamps have a lower upfront cost, the quality of the arc tube and manufacturing consistency can vary significantly, leading to a higher risk of brightness degradation and shortened lifespan. These 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, Our Quality Control": power, arc gap, and reflector size are matched point-by-point to the original, but each lamp undergoes an additional individual ignition test before shipment and comes with a 180-day warranty. Compared to the original, it offers a more hassle-free overall experience; compared to other alternatives, it offers more consistent quality control.

Q: What should I do if the projector shows "Lamp Not Recognized" after replacement?

A: First, confirm whether the lamp hour counter has been reset. Most of these prompts are caused by the timer not being reset. If the error persists after resetting, contact Zorsika technical support. We can provide reset instructions and troubleshooting guidance for the corresponding models.

Q: Is there an installation tutorial for the 5811118436-SEK?

A: Yes. The lamp door location and disassembly/assembly steps for these Eiki models are largely similar. 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. Normal use failures not caused by human error (such as lamp rupture or abnormal early light degradation) are covered by after-sales service. Brightness degradation within standard parameters 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 Consultation

For consultation on the Eiki 5811118436-SEK, bulk solutions, or a complete list of compatible models, please 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 lamp module model, specifications, and compatible model data in this article are from the Zorsika product database. Data is continuously updated and subject to final confirmation during inquiry.