Quote: Originally Posted by Arathranar
Wouldn't that massively shorten the life of the bulb?
oui
but we are talking lives of over 3000 hours anyway.
the newer 400nit xenarc is just an upgraded inverter and the CCFL in the panasonic is about 170mm shorter than the CCFL in the hitachi so if these screens are running hitachi panels then if they are run at the same duty cycle as the 400nit panasonics then they are about equal in life but much brighter...infact..
..quick calc..
.400/0.8=500,
500/(80+170)=2,
2x(80+170+170k)
- where k = knockdown factor for loss of reflection due to tube oposite and will be about 0.65 -
= 738, 738x0.8 = 570.
so yeah about 550nit would be what you would expect from running the slightly larger U shaped (as opposed to L shaped) CCFL as a power similar, but probably slightly lower than, the Xenarc tube per same unit length.