R
RHRRC
- Jan 1, 1970
- 0
The white 'phosphored' leds are maturing products and, from the major
manufacturers at least, now have decently predictable lifespans.
Fairly new to the market are the 5mm (T13/4) coloured (Red,Yellow etc)
'phosphored' leds and I am wondering if the teething problems of the
white leds will be repeated for these coloured devices or whether
lessons have been learnt.
Most white development is (and was) toward upward of 1W devices in the
manufacturers various proprietry packages but I wonder if there still
are pdegradation roblems with 5mm 'phosphored' led packages and/or
whether these new 'coloured' phosphors themselves have know
degradation characteristics.
The phophored yellows in particular appear to have superior efficacies
to the normal PN junction devices.
manufacturers at least, now have decently predictable lifespans.
Fairly new to the market are the 5mm (T13/4) coloured (Red,Yellow etc)
'phosphored' leds and I am wondering if the teething problems of the
white leds will be repeated for these coloured devices or whether
lessons have been learnt.
Most white development is (and was) toward upward of 1W devices in the
manufacturers various proprietry packages but I wonder if there still
are pdegradation roblems with 5mm 'phosphored' led packages and/or
whether these new 'coloured' phosphors themselves have know
degradation characteristics.
The phophored yellows in particular appear to have superior efficacies
to the normal PN junction devices.