Re: Battery life on red dot sights
- From: "Wayne" <mygarbagecan@xxxxxxxxxxx>
- Date: Mon, 7 May 2007 10:55:11 +0000 (UTC)
<2000man@xxxxxxxxx> wrote in message
news:f1lhqf$h6t$1@xxxxxxxxxxxxxxxxxxxxxxxx
#
# #
# # This is just a variable resistor which controls the current
# # going into the LED and, therefore, it's brightness. Sadly,
# # the unused energy of the battery is thrown away as heat in
# # the rheostat.
# #
# uh i think you need to take a refresher course in electronics the more
# resistance the less current flow
# the unused energy remains in the battery
#
# some may interpret what you say as leave it on full blast otherwise
# setting one is just wasting power in the resistors
#
Well, I didn't write that, but I took it to mean that a pulse width
brightness control does not dissipate power in a rheostat.
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