27 Dec
2001
27 Dec
'01
1:58 a.m.
I got one jacked up to the point where it got
_very_ warm and started to turn blue.
Thanks. My criteria for noticeably warm and uncomfortably
warm (for an LED) was about <5degF and <20degF
respectively. I know you can get more, heat, but that always
seemed to not be the thing to do with LED's.
I have read that these don't have the life
expectancy of a "pure" LED because
the phosphor will wear out (?)
The specs don't seem to balance.. the 4cd doesn't come
at 20ma. It's like 4cd/5degF at 180ma, 5cd/20degF@250ma,
0.5cd/+0degF@20ma. So, less light, or more current?
John A.