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331-2839 projector lamp module
Fits 3 projector models from Dell.
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The Dell 4220, 4230 and 4320 share a single lamp module, 331-2839, rated at 300 watts and supplied with the bulb built into its housing. Since all three projector models use the same internal lamp fitting, one part serves the whole trio rather than requiring a separate module for each. Rated life is 2000 hours.
This module also appears as 725-10284, and some records show it combined as '331-2839 / 725-10284', both describing the identical part. Because it's the module version, the bulb and housing are replaced together, so there's nothing to transfer out of your old unit before fitting the new one.
At a glance
- Wattage — 300 W
- Rated life — 2,000 hours
- Type — Projector Lamp with Module
- SKU — LA-08747
- Compatibility — 3 projector models
Common questions
Why do three separate Dell models share the same lamp?
The 4220, 4230 and 4320 use the same internal lamp housing design despite being marketed as different models, so Dell fitted them all with this same 331-2839 module.
What does the combined code '331-2839 / 725-10284' mean?
It's simply both alternative part numbers shown together on some records, rather than a separate combined product. Either number on its own will bring up this same lamp.
Does the fitting process differ between the 4220, 4230 and 4320?
No, all three of the 4220, 4230 and 4320 take this exact same module in the same way, since all three projectors share an identical lamp bay design internally.
Is 2000 hours enough for regular daily use?
It depends on how many hours a day the projector runs, but 2000 hours covers several months of typical office or classroom use before a replacement is likely to be needed.
What should I look for to confirm I own the 4230 rather than the 4220?
The exact model name is usually printed on a label on the projector's casing, often near the lamp door or on the underside. Since this module fits all three models, getting the code right matters more than pinning down which of the three you have.
This is a complete module — bulb already seated in its housing, so it drops straight in.
Why do three separate Dell models share the same lamp?
The 4220, 4230 and 4320 use the same internal lamp housing design despite being marketed as different models, so Dell fitted them all with this same 331-2839 module.
What does the combined code '331-2839 / 725-10284' mean?
It's simply both alternative part numbers shown together on some records, rather than a separate combined product. Either number on its own will bring up this same lamp.
Does the fitting process differ between the 4220, 4230 and 4320?
No, all three of the 4220, 4230 and 4320 take this exact same module in the same way, since all three projectors share an identical lamp bay design internally.
Is 2000 hours enough for regular daily use?
It depends on how many hours a day the projector runs, but 2000 hours covers several months of typical office or classroom use before a replacement is likely to be needed.
What should I look for to confirm I own the 4230 rather than the 4220?
The exact model name is usually printed on a label on the projector's casing, often near the lamp door or on the underside. Since this module fits all three models, getting the code right matters more than pinning down which of the three you have.
Other Dell lamps in the catalogue. Codes in the same family often differ by a single character, so check the part number against your old lamp before ordering.
