Original Inside lamps are alternative brand products containing an original bulb in a compatible housing. The performance is equal to an official part, but for projectors still under guarantee we recommend an official (OEM) lamp as an alternative may void your warranty.Original Inside replacement projector lamp for the following NEC projectors:NEC NP ME301WNEC NP ME301XNEC NP ME331WNEC NP ME331XNEC NP M361WNEC NP ME361XNEC NP ME401WNEC NP ME401X
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