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DLP4500NIR: Difference between DLP4500 and DLP4500NIR

Part Number: DLP4500NIR
Other Parts Discussed in Thread: DLP4500

Dear Texas Instruments:

I would like to know the difference  between DLP4500 and DLP4500NIR.

I already know that the window is suitable for NIR at DLP4500NIR.

Is there any other difference between them?