[time-nuts] Reducing lab noise with LED lighting.
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Sep 17 05:55:24 UTC 2012
In message <9AE0E07A-568C-43D1-8CB6-0D0E21EE6541 at rtty.us>, Bob Camp writes:
>The thing that makes the CFL's nasty for lab use are the cheap
>little switchers built into them. Conventional LED lights also have
>cheap little switchers in them. Doing them with a 30% efficient
>linear regulator gets you back to halogen type lumens per watt...
I run my led-lights directly off my 12V battery backed supply without
any regulation, just find the right number of LEDS to connect in
series for the maximum charge voltage, and live with a little less
light in hold-over mode...
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
More information about the time-nuts
mailing list