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Mickey
2001/12/11, 05:28 PM
Hi,

what is the expected lifetime of the 634 backlight?
I don't know how PWM affects the backlight, so does
brightness control makes a difference concerning the lifetime?

Yours, Mickey.

p.s. To see how I'm using the 634, check out http://captainslog.n3.net, which is my online diary (sorry - german only)

CF Tech
2001/12/11, 11:10 PM
The lifetime of the LED is typically 50000 to 100000 hours.

PWM just shuts it off, so if you PWM at 25%, I would expect it to last 4 times longer.

Looks like English to me:

http://translate.google.com/translate?u=http%3A%2F%2Fcaptainslog.n3.net%2F&langpair=de%7Cen&hl=en&prev=%2Flanguage_tools

:D