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Rectangular black plastic housing with integrated 280W UHP bulb ready for installation

OPTOMA

OPTOMA TX774 Projector Lamp 280W 2000 Hrs

SKU CH-377A-C0SFG

A 280W replacement lamp module with a 2000-hour rated life, supplied as a complete bulb-and-housing assembly for straightforward installation

  • Power rating280 W
  • Lamp lifespan2,000 Hrs.
  • Product typeProjector Lamp
  • Genuine compatible replacement restores full projector brightness
  • 280W UHP bulb delivers specified light output
  • 2000-hour rated life supports extended use
  • Pre-assembled housing enables quick tool-free installation
  • Manufactured to ISO9001 quality standards

Replacement Lamp Module TX774

The TX774 lamp module is a complete replacement assembly for compatible Optoma projectors. It arrives with the 280W UHP bulb already fitted inside the housing so no separate handling of the burner is required. Installers can swap the unit in minutes without special tools.

Practical Limits of 280W UHP Technology

A 280-watt ultra-high-pressure lamp produces bright output but generates significant heat and requires the projector's original cooling system to function correctly. Rated life is 2000 hours under standard operating conditions; actual hours vary with usage patterns, ambient temperature and the projector's power-management settings.

The Deciding Specification: 280W / 2000-Hour Rating

Only projectors designed for a 280W UHP lamp with a 2000-hour rated life should use this module; inserting it into a chassis specified for a different wattage or lamp type will cause ignition failure or premature burnout. Buyers who need a longer-rated lamp or a different wattage must select the module matched to their projector's service manual.

How it compares

Measured against everything we stock in Replacement Projector Bulbs, at today’s prices. Recalculated every night.

Price $82.99
Cheaper than about 66% of the 9,513 comparable items (median $99.99).
Power rating 280 W
Higher than about 81% of the 8,831 comparable items (median 215 W).

Specifications

Product
Product typeProjector Lamp
Display
Lamp lifespan2,000 Hrs.
Power
Power rating280 W

Questions about this item

Which TX774 lamp version should I pick — OEM direct, OEM Optoma, OEM compatible or third-party compatible?

All four versions use a genuine 280W UHP bulb in a pre-assembled housing and meet ISO9001 checks; choose the OEM direct or Optoma-supplied unit for the original manufacturer's build, or the compatible option for a lower-cost alternative with the same 2000-hour rating.

What does the 2000-hour rating mean once the lamp is running in my projector?

It indicates the typical operating time before brightness drops to roughly half its initial output; actual life varies with power-on cycles, ventilation and whether you use eco mode.

Does the TX774 lamp use a standard interface that caps performance in any way?

The lamp plugs directly into the projector's proprietary lamp connector; there is no industry-standard interface that limits brightness, ignition voltage or run-time.

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