Exterior 400 Image Projector - Power/Lamp Hour Maximum Value
Frequently Asked Questions
Written by Andras Schober
Updated at April 23rd, 2026
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Brand:
- Martin
Models:
- Exterior 400 Image Projector
Question:
What is the maximum value of the power‑on (lamp‑hour) counter for the Exterior 400 Image Projector, and what happens when this limit is reached?
Answer:
The maximum value of the counter is 65,535, because of the use of a 16‑bit architecture.
Once this limit is reached (approximately 7.5 years of continuous operation), the counter rolls over to 1, without generating any error or warning message.
Additional Information:
- This behavior explains why the total operating hours may appear lower than the resettable lamp‑hour counter, even though the unit has been in operation for a longer period.
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