Kurt, The supply is a heavy metal unit that obviously has a transformer as
it is heavy, it HUMS, and is not at all like a computer power supply or some
light weight device. I would expect the 300 watt unit is 5 -6 lbs and the 88
watt model is 2-3 lbs. As for how linear...who knows. But when I suggested
that I was going to try the battery and a stand alone 20 amp power supply
the neighbor was quick to remind me that the lights are AC powered. We used
a multi-meter and tested the voltage from the taps which read AC. We changed
polarity and the voltage was the same at just under 12 volts AC. - Mike
-----Original Message-----
From: KD7JYK DM09
Sent: Monday, March 11, 2013 8:40 PM
To: rfi@contesting.com
Subject: Re: [RFI] Cree LED Bulbs?
: The landscaping lights turn out to be 12 volt AC powered and not 12 volt
DC
: powered. All the suggestions about a car battery and/or an Astron or
other
: linear power supply now go out the window. -M
Not likely. Why would a light bulb care if you run it on DC instead of AC?
The first thing to do is look at the power supply that came with the lights.
A heavy linear transformer (rf SILENT) or a light-weight switching mode
power supply (RF BROADBAND JAMMER)?
Kurt
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