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28-640 bare projector lamp
Fits 11 projector models from Knoll · Lightware · Plus · Yamaha.
This is our reference price in US dollars. We confirm the delivered price for United Arab Emirates on a formal quote, including shipping, duties where we can prepay them, and the correct local warranty terms.
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28-640 is a 120W bare lamp rated for 1000 hours, shared across four brands: Knoll's Systems HT221, Lightware's Traveler and Traveler CS11, Plus's U2-1110 through U2-X1150 range, and the Yamaha DPX-1. Eleven projectors in total are listed against this one bulb, supplied without a housing for reuse in your existing unit.
The same lamp is also listed as 28-610, Systems 28-610, Systems 28-640, U2-150, U2-151, Systems U2-150 and Systems U2-151, so any of these codes on your old lamp point to this same bulb. A module version with a new housing is also available under the 28-610 part number.
At a glance
- Wattage — 120 W
- Rated life — 1,000 hours
- Type — Bare Projector Lamp
- SKU — LA-09352
- Compatibility — 11 projector models
Common questions
Why do Knoll, Plus and Yamaha projectors all use the same lamp?
This 120W lamp is listed here against several different manufacturer badges, which is why 28-640 covers Knoll's Systems HT221, Plus's U2 series, Lightware's Traveler and the Yamaha DPX-1 rather than a single brand.
Is U2-150 a different lamp from 28-640?
No, U2-150 and U2-151 are recorded as alternative codes for this same lamp, alongside Systems 28-610, Systems 28-640, Systems U2-150 and Systems U2-151. All refer to the identical 120W bulb listed here.
How long can I expect the 28-640 bulb to run between replacements?
28-640 is rated for 1000 hours at 120W, a shorter figure than some of the higher-powered projector lamps we list, which is worth factoring into how often you expect to replace it.
Does this bare lamp fit the Plus U2-X1150?
Yes, the U2-X1150 is listed here alongside the U2-1110, U2-1130, U2-813, U2-815, U2-818 and U2-X1130 models, covering the Plus U2 range in full, alongside Knoll's Systems HT221 and the Yamaha DPX-1.
Why is there a module version listed under a different code, 28-610?
We list the bare bulb here as 28-640 and the complete module, with a new housing, under 28-610, even though both cover the same eleven projectors. Choose whichever matches whether you need a housing or not.
This is a bare lamp — the bulb only. You reuse the housing already fitted in your projector.
Why do Knoll, Plus and Yamaha projectors all use the same lamp?
This 120W lamp is listed here against several different manufacturer badges, which is why 28-640 covers Knoll's Systems HT221, Plus's U2 series, Lightware's Traveler and the Yamaha DPX-1 rather than a single brand.
Is U2-150 a different lamp from 28-640?
No, U2-150 and U2-151 are recorded as alternative codes for this same lamp, alongside Systems 28-610, Systems 28-640, Systems U2-150 and Systems U2-151. All refer to the identical 120W bulb listed here.
How long can I expect the 28-640 bulb to run between replacements?
28-640 is rated for 1000 hours at 120W, a shorter figure than some of the higher-powered projector lamps we list, which is worth factoring into how often you expect to replace it.
Does this bare lamp fit the Plus U2-X1150?
Yes, the U2-X1150 is listed here alongside the U2-1110, U2-1130, U2-813, U2-815, U2-818 and U2-X1130 models, covering the Plus U2 range in full, alongside Knoll's Systems HT221 and the Yamaha DPX-1.
Why is there a module version listed under a different code, 28-610?
We list the bare bulb here as 28-640 and the complete module, with a new housing, under 28-610, even though both cover the same eleven projectors. Choose whichever matches whether you need a housing or not.
Other Knoll 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.
