Do not clean the projector with flammable substances such as benzene, thinners or a wet cloth, as these may cause problems.
Do not touch the projector with a nail or any other sharp objects, as this may scratch the surface.
Contact your distributor or a Service Center if dust or other substances are inside the projector.
Lamp Replacement
The projector lamp is en expandable item. For best operating performance, replace the lamp according to the usage time. You can view the lamp usage time in the Information Display (INFO button).
Use the recommended lamp when replacing. Lamp specifications are defined in the user’s manual. Replace with the same model provided with the projector.
Check that the power cord is unplugged before replacing the lamp.
Even after the power cord has been disconnected, the lamp will be hot. Allow it to cool down for at least 1 hour before changing the lamp.
The lamp is located at the left rear of your projector.
Before you turn the projector over to change the lamp, cover the projector with a soft cloth on a flat surface.
Do not leave the old lamp near inflammables or in reach of children. There is a danger of burn or injury. 
Remove dirts or foreign materials around or inside the lamp unit using a proper vacuum device.SPA400BCX/EDC, SPA400BX/EDC specifications
Samsung SPA400BX/EDC and SPA400BCX/EDC models are advanced networked communication solutions designed for businesses seeking reliable and efficient communication tools. These products belong to the suite of Samsung's SPA series, which is known for its innovative features and robust performance.One of the main features of the SPA400BX/EDC and SPA400BCX/EDC is their support for Voice over Internet Protocol (VoIP) technology. VoIP allows for high-quality voice communication over the internet, reducing long-distance call costs and enabling seamless connectivity. This feature is essential for businesses aiming to optimize their communication infrastructure while ensuring sound clarity and efficiency.
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Overall, the Samsung SPA400BX/EDC and SPA400BCX/EDC represent a significant evolution in business communication technology. Their combination of VoIP support, dual-mode compatibility, advanced call management features, robust security, and energy efficiency makes them ideal for organizations looking to enhance their communication strategies. With comprehensive functionality and reliability, these models are poised to meet the dynamic needs of modern businesses.