Question 1

How do I find the correct replacement lamp for my projector?

Accepted Answer

Check the OEM part number printed on the label inside your projector's lamp compartment — this is the only reliable reference. Every projector lamp is model-specific, and even lamps from the same manufacturer are not interchangeable between product lines. Once you have the part number (e.g., NP16LP-UM for NEC, or 5J.JFG05.001 for BenQ), you can search for both OEM and compatible alternatives. Compatible lamp suppliers like CoreParts, TEKLAMPS and BTI publish searchable compatibility lists on their product pages.

Question 2

Are compatible (third-party) projector lamps worth buying, or should I always go OEM?

Accepted Answer

Compatible lamps are worth buying in the right circumstances, but not unconditionally. For occasional-use projectors, older models where OEM stock is scarce, or budget-constrained environments, a quality compatible lamp from CoreParts, BTI or Origin Storage is a reasonable choice — particularly if it carries CE marking and a minimum 12-month warranty. For high-use professional projectors, daily-use education or AV installations where downtime is costly, OEM lamps are the safer long-term investment. The total cost of ownership calculation shifts when you factor in that a cheap compatible lamp failing at 1,500 hours costs you another replacement cycle.

Question 3

What does UHP mean on a projector lamp, and does it matter?

Accepted Answer

UHP stands for Ultra High Performance — it's a high-pressure mercury vapour arc lamp technology used in the vast majority of modern DLP and LCD projectors. It matters because it defines the lamp's brightness capability, colour rendering and lifespan characteristics. When buying a compatible replacement, ensure it uses genuine UHP technology rather than a lower-grade mercury lamp marketed with similar wattage figures. The difference shows up in colour point stability and brightness retention over the lamp's life, not just in the initial image quality.

Question 4

How long should a projector lamp last, and when should I replace it?

Accepted Answer

Most UHP projector lamps are rated between 3,000 and 5,000 hours, though this figure represents the point at which brightness drops to 50% of the original output — not when the lamp stops working. In practice, you'll notice image quality deteriorating (washed-out colours, reduced contrast) well before the lamp fails completely. Most projectors display a lamp hour counter in the settings menu; replace the lamp when it approaches the manufacturer's recommended threshold, or when you notice a visible drop in brightness during normal use. Running a lamp significantly beyond its rated life risks sudden failure mid-presentation and, in rare cases, lamp explosion.

Question 5

Why are some projector lamps so much more expensive than others with the same wattage?

Accepted Answer

Wattage alone tells you very little about lamp quality or price. The cost difference comes down to lamp technology (HMI arc lamps cost far more than UHP), projector model specificity (lamps for high-end Panasonic or Epson large-venue projectors command a premium), OEM vs compatible status, and the quality of the reflector assembly and housing. A 280W OEM lamp for a professional NEC projector will cost several times more than a 280W compatible lamp for a budget office projector — because the optical tolerances, ballast compatibility requirements and expected lifespan are entirely different.

Question 6

Can a wrong projector lamp damage my projector?

Accepted Answer

Yes — fitting an incompatible lamp is a genuine risk, not just a theoretical one. The most common issues are mismatched ignition voltage (which stresses the ballast), incorrect physical fit causing overheating, and incompatible connector types that create electrical faults. Beyond immediate damage, using a non-approved lamp in a projector still under manufacturer warranty will typically void that warranty. Always verify the OEM part number before purchasing, and if buying compatible, use a supplier that explicitly lists your projector model in their compatibility documentation.

Question 7

What's the difference between a projector lamp and a lamp module?

Accepted Answer

A lamp module (sometimes called a lamp unit or lamp assembly) includes the bare arc lamp, its reflector, housing and electrical connectors — it's the complete replaceable unit you slot into the projector. A bare lamp is just the glass arc tube itself, without housing. Most consumer and business projector replacements are sold as complete modules, which is what you want: they're designed to be user-replaceable without specialist tools. Bare lamps are primarily for professional service technicians who rebuild lamp assemblies. If a listing doesn't specify, check whether a housing is included before purchasing.

Projector Lamps Price Comparison

CoreParts ML12765 projector lamp 268 W

CoreParts ML12757 projector lamp 220 W

CoreParts ML12749 projector lamp 260 W

TEKLAMPS NP15LP Compatible lamp for NEC projectors projector lamp

TEKLAMPS Lamp for BENQ MW632ST projector lamp 190 W

Origin Storage BTI Projector Lamp for NEC NP1150 NP1250 NP2150 NP2250 NP3150 NP3151 NP3151W NP3250 NP3250W P2150 NP3150G2 NP3251

TEKLAMPS Lamp for SONY VPL VW520ES projector lamp 280 W

BTI NP26LP projector lamp 350 W UHP

CoreParts ML12794 projector lamp 180 W

CoreParts ML12798 projector lamp 310 W

BTI SP-LAMP-087 projector lamp 190 W UHP

BTI SP-LAMP-093 projector lamp 230 W P-VIP

CoreParts ML12793 projector lamp 215 W

BTI BL-FU310B projector lamp 310 W UHP

BTI REPLACEMENT FOR HITACHI IMAGEPRO 8934 CP-EX250 CP-EX250N CP-EX300 projector lamp 215 W UHP

BTI DT01471 projector lamp 365 W UHP

CoreParts ML12779 projector lamp 200 W

CoreParts ML12807 projector lamp 240 W

BTI V13H010L91 projector lamp 250 W UHE

Origin Storage BTI Projector Lamp for Epson Powerlite 1221 Powerlite 1261W X15 Home Cinema 710HD EB-S11

CoreParts ML12821 projector lamp 370 W

Origin Storage BTI Projector Lamp for Replacement Epson Powerlite 97H 98H 99WH HOME CINEMA 1040

BenQ 5J.JG705.A01 projector lamp

Viewsonic RLC-125 projector lamp

Projector Lamps Price Comparison