nuckolls.bob(at)aeroelect
Guest
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 Posted: Tue May 23, 2017 10:11 am Post subject: Comparison of LED annunciator fixtures |
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A few days there was some discussion about some
off-the-shelf, led annunciator fixtures offered
on eBay:
I ordered in some of these and found that they
were reasonably bright, mechanically rugged
with the only down-side being the lack of
vibration support on the smash-em terminals
at the back.
http://tinyurl.com/lpgjdu3
[img]cid:.0[/img]
Somebody mentioned these:
http://tinyurl.com/mw629ow
[img]cid:.1[/img]
I ordered some samples which arrived yesterday.
They're certainly good looking and mechanically rugged.
They're biased up with a resistor spliced into the
pigtails under heat shrink. As received, they're
set up to consume less than 10mA at 12-14v.
I'm pretty sure these lamps will easily handle 30
mA of excitation which gets you a bit more intensity.
These may well be suited to your annunciation task.
Consider replacing the existing series resistor
with a 330 Ohm, 1/2 watt resistor.
Bob . . .
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