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A rectangular black projector lamp module with a silver front lens and metal housing, new in packaging

3M

3M 78-6969-9994-1 DLP Replacement Lamp

SKU CH-MCB1-GM5QQ

Replacement lamp and housing module fits 3M DX70i and WDX70i projectors

  • Product typeProject Lamp
  • Product weight0.999
  • Direct-fit replacement for 3M DX70i and WDX70i projectors
  • Original-spec lamp and housing module restores factory brightness
  • New condition unit ready for immediate installation
  • Lightweight design at 0.9990 kg eases ceiling-mount handling
  • One-year manufacturer warranty covers the complete assembly

Compatible 3M Projector Models

This replacement lamp and housing module fits 3M DX70i and WDX70i projectors. It restores original brightness when the installed lamp reaches end of life. The unit ships new and ready to install without additional tools.

Thermal and Power Behaviour

The lamp operates within the thermal envelope designed for the DX70i and WDX70i chassis. Normal use produces the expected fan noise and power draw for these projector models. No extra cooling or electrical provision is required beyond the projector's standard specification.

When Replacement Is Worth It

Replace the lamp when image brightness drops noticeably or the projector signals a lamp-hour warning. The module suits owners of the listed 3M models who need a direct swap. It does not suit users of other projector brands or 3M series not named above.

How it compares

Measured against everything we stock in DLP TV Lamps & Bulbs, at today’s prices. Recalculated every night.

Price $106.99
Pricier than about 56% of the 8,306 comparable items (median $97.99).

Specifications

Product
Brand nameJaspertronics
Model name78-6969-9994-1
Part number78-6969-9994-1
Product typeProject Lamp

Questions about this item

How do I install the 78-6969-9994-1 lamp and housing module in my 3M DX70i or WDX70i projector, and what step is often missed?

Power off and unplug the projector, let it cool completely, remove the lamp cover screw, slide out the old module, insert the new 78-6969-9994-1 unit until it clicks, replace the cover screw, then reset the lamp timer in the projector menu — the timer reset is the step most often forgotten.

What maintenance or replacement will the 78-6969-9994-1 lamp and housing need later?

The lamp itself will dim over time and eventually require a full module replacement; the housing is reused only when you buy a bare lamp, but this 78-6969-9994-1 unit includes both parts so you simply swap the entire module again when brightness drops.

What limit appears first during sustained use of the 78-6969-9994-1 lamp in a 3M projector?

The lamp’s rated life determines the limit — after the rated hours the light output falls below usable levels and the module must be replaced.

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