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NP31LP Projector Lamp with Module
Fits 8 projector models from NEC.
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NP31LP serves NEC's PX581W and PX651X installation projectors, covering eight listed models once the NP-prefixed and plus-suffixed variants of each are counted. It is supplied as a lamp with module, so the bulb arrives already fitted into its housing, ready to fit as a single unit into any of the eight.
NP31LP is the only part number listed for this lamp, so there is no alternative code to check against an old label. As a module, housing is included, useful if your current housing has become brittle after extended use. With four PX581W and four PX651X variants listed, including the NP- prefix and + suffix versions, confirm your exact model before ordering.
At a glance
- Type — Projector Lamp with Module
- SKU — LA-11533
- Compatibility — 8 projector models
Common questions
What's the difference between PX581W and NP-PX581W?
These describe the same NEC projector under slightly different labelling conventions, and both use the identical NP31LP module. The plus-suffixed versions, PX581W+ and NP-PX581W+, also take the same lamp.
Does NP31LP fit the PX651X as well as the PX581W?
Yes, both the PX581W and PX651X families are listed as compatible, across their standard and NP-prefixed, plus-suffixed variants, eight models in total, all sharing the same lamp.
Does the plus-suffixed PX581W+ need a different lamp from the standard PX581W?
No, both the PX581W and PX581W+ are listed as compatible with the same NP31LP module, as are the PX651X and PX651X+, so the suffix makes no difference.
The photo shown doesn't match my projector, is that a problem?
The image displayed is a generic placeholder rather than a photo of this exact lamp, so it will not visually match your projector or the lamp's own casing. Ordering correctly depends on the NP31LP part number matching your PX581W or PX651X model, not the picture.
How do I reset the lamp timer on a PX651X?
Once the new NP31LP module is fitted and the cover is closed, reset the lamp hours through the projector's on-screen menu, typically under a maintenance or lamp settings page.
This is a complete module — bulb already seated in its housing, so it drops straight in.
What's the difference between PX581W and NP-PX581W?
These describe the same NEC projector under slightly different labelling conventions, and both use the identical NP31LP module. The plus-suffixed versions, PX581W+ and NP-PX581W+, also take the same lamp.
Does NP31LP fit the PX651X as well as the PX581W?
Yes, both the PX581W and PX651X families are listed as compatible, across their standard and NP-prefixed, plus-suffixed variants, eight models in total, all sharing the same lamp.
Does the plus-suffixed PX581W+ need a different lamp from the standard PX581W?
No, both the PX581W and PX581W+ are listed as compatible with the same NP31LP module, as are the PX651X and PX651X+, so the suffix makes no difference.
The photo shown doesn't match my projector, is that a problem?
The image displayed is a generic placeholder rather than a photo of this exact lamp, so it will not visually match your projector or the lamp's own casing. Ordering correctly depends on the NP31LP part number matching your PX581W or PX651X model, not the picture.
How do I reset the lamp timer on a PX651X?
Once the new NP31LP module is fitted and the cover is closed, reset the lamp hours through the projector's on-screen menu, typically under a maintenance or lamp settings page.
Other NEC 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.
