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Rectangular projector lamp module in black plastic housing

DELL

DELL 331-2839-A DLP Replacement Lamp for 4220 4230 4320

SKU CH-X7B7-4CMM7

Replacement lamp and housing compatible with Dell 4220, 4230 and 4320 projectors

  • TypeProject Lamp
  • Weight0.9900
  • Genuine AL Series lamp delivers reliable brightness
  • Ready-to-install housing fits Dell 4220, 4230 and 4320 projectors
  • New aftermarket module replaces part 331-2839-A directly
  • 90-day warranty backs the replacement lamp
  • Lightweight design at 0.99 kg eases installation

Compatible Dell Projector Models

This replacement lamp module fits Dell projectors 4220, 4230 and 4320. It is built for technicians and home-theatre owners who need a direct-fit unit for scheduled maintenance. The part number 331-2839-A matches the original housing so installation follows the standard projector service procedure. Buyers who require a different projector series cannot use this module.

Thermal Behaviour and Power Draw

The lamp operates within the thermal envelope defined by the host projector’s cooling system. Normal use produces the light output and heat levels expected for the specified Dell models without additional noise beyond the projector’s own fans. Power consumption is governed by the projector’s internal ballast and matches the original specification. No independent thermal or acoustic figures are published for the lamp alone.

Included Housing and Warranty

The lamp ships pre-assembled in its housing so no separate bulb handling or alignment is required. A 90-day warranty covers the unit against premature failure during the initial operating period. Volume, educational and wholesale accounts may qualify for discounted pricing. No software, cables or additional accessories are bundled with this module.

Highlights

  • Genuine AL Series lamp delivers reliable brightness
  • Ready-to-install housing fits Dell 4220, 4230 and 4320 projectors
  • New aftermarket module replaces part 331-2839-A directly
  • 90-day warranty backs the replacement lamp
  • Lightweight design at 0.99 kg eases installation

Specifications

BrandAdvanced Lamps
Model331-2839-A
Part Number331-2839-A
TypeProject Lamp
Weight0.9900

Questions about this item

How do I install the 331-2839-A lamp housing into a Dell 4220 projector, and what step is often missed?

Power off and unplug the projector, let it cool completely, remove the lamp cover screws, slide out the old housing, insert the new 331-2839-A unit until it clicks, replace the cover, then reset the lamp timer in the on-screen menu — the timer reset is the step most people forget.

What maintenance will the 331-2839-A lamp need after installation?

Clean the projector air filters every few months to prevent overheating; the lamp itself requires no maintenance until brightness drops noticeably, at which point you replace the entire 331-2839-A housing again.

What limit appears first during long sessions with the 331-2839-A lamp?

The projector’s thermal protection will shut the unit down if internal temperatures exceed safe levels, so sustained use is limited by cooling capacity rather than the lamp itself.

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