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mddickens(at)comcast.net
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 Posted: Thu Sep 06, 2012 5:16 pm Post subject: Best Panel Dimmer for LEDs |
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I'm looking for an quality compact dimmer for LED lights. There are a number of units for sale out there, but wondered if the list had any recommendations. These would be used for cockpit lighting in my RV-8
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nuckolls.bob(at)aeroelect
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| Posted: Thu Sep 06, 2012 10:32 pm Post subject: Best Panel Dimmer for LEDs |
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At 08:16 PM 9/6/2012, you wrote:
| Quote: | I'm looking for an quality compact dimmer for LED lights. There are
a number of units for sale out there, but wondered if the list had
any recommendations. These would be used for cockpit lighting in my RV-8
|
Which ones are you considering? LED dimmer requirements
can be markedly different than the devices suited to
incandescent bulbs. The dimmers we used to sell (and
B&C still does) are designed to produce a 4 to 13 volt
output over full rotation of the knob. 4 volts produces
a just visible glow from the lamps. This voltage range
produces a visible adjustment of light output over
the full range of rotation.
Other lighting sources have their own quirks. I did
a proposal for somebody on a 3 channel dimmer that
provided a uniform observable effect on light output
when controlling incandescent post lights, EL back
lighting and plasma displays. Each system required its
own span of control voltage and curve.
An LED fixture with say, three white lamps in
series will not produce any useful light until
the voltage is up to 7-8 volts . . . A modern
incarnation of the dimmer I cited above might offer
an adjustable constant current output that would
accommodate any combination of LEDs in series.
You're going to have to give us more information
as to how your lighting sources are configured
along with devices you've seen advertised and
want to consider.
Bob . . .
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