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Valmont F40 Cold Temp. Ballasts

Valmont F40 Cold Temp. Ballasts

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Basically GE ballasts that were bought out by Valmont. These were tested and run lamps full power at 415-425ma @245voc. I guess they are rated O deg F because of higher OCV...245v instead of 220v.
Date code is TF (1991).

IMG_5245_2.JPG IMG_5244_2.JPG IMG_5239_2.JPG IMG_5234_2.JPG

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Album name:don93s / lighting components
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Date added:Jan 07, 2012
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Date Time:2012:01:07 14:50:58
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Powergroove
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Jan 07, 2012 at 09:12 PM Author: Powergroove
Cool, I see they are also listing FC16 & FC12 lamps as suitable. @ don93s, Do you know the ballast factor right off hand? I have several FC16s ran on LPF ballast with a ballast factor of .62. I would like to have a better ballast factor.

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Jan 08, 2012 at 12:04 PM Author: don93s
@Powergroove, judging by the lamp current, I would guess the ballast factor is in the high 90's. 40w lamps are rated 430ma and these are as high as 425ma. I have some other cold temp ballasts...also HPF, and they were a disappointing B.F. of below 80%. I've fit this size ballast fairly easily into 32w fixtures (might have to bend back a corner of the flange).
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Jan 08, 2012 at 01:21 PM Author: DieselNut
Nice! Should give an impressive EOL show too!!!

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

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Jan 08, 2012 at 02:12 PM Author: don93s
Yeah these will easily demolish a 30 or 32w EOL lamp. A 40w EOL lamp will be very flickery but cool nonetheless.
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Apr 11, 2016 at 05:20 AM Author: suzukir122
I have the two lamp versions of these now, two in my kitchen fixtures, and one in a circline fixture I recently bought, which
uses one 32 watt and one 22 watt. Runs REALLY smoothly, which makes me wonder if it would work with T8 32 watt lamps. I'm also
curious about whether these can take 20 watt T12 lamps as well, although Im pretty sure those lamps wouldn't last long due to
low filament heating

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Apr 11, 2016 at 05:21 PM Author: don93s
I wouldn't try on 32w T8 because they have a higher lamp voltage in which HPF ballast isn't designed for. It may work, it may be flickery, or it may overheat ballast. Some do seem more tolerant than others.

As for 20w lamps, they seem hit and miss. I've noticed that the electrodes in those vary a lot when I tested a few different brands. Some heat easier and might work on RS while others won't heat easily so need trigger start or strictly PH.
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