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Philips 2X F20 Ballast Here's a Philips F20 ballast that has two sets of date codes, one set reads 08-95 while the other set reads 089, I think it should date to August 1995 but I don't know what the second set of numbers is for then. The fixture this was in has a date code of 980309 but I guess it most likely a '95 ballast. The fixture is NOS so I can't use the dates on the lamps as a guide LOL. Keywords: Gear

Philips 2X F20 Ballast

Here's a Philips F20 ballast that has two sets of date codes, one set reads 08-95 while the other set reads 089, I think it should date to August 1995 but I don't know what the second set of numbers is for then. The fixture this was in has a date code of 980309 but I guess it most likely a '95 ballast. The fixture is NOS so I can't use the dates on the lamps as a guide LOL.

100_1993.JPG 100_2054.JPG 100_2058.JPG P1070597.JPG P1230736.JPG
File information
Filename:100_2058.JPG
Album name:joe_347V / Lighting Components
Keywords:Gear
Company and Date Manufactured:Philips, August 1995
Wattage:14-15-20w
Lamp Type:Fluorescent
Filesize:99 KiB
Date added:Nov 11, 2010
Dimensions:1024 x 768 pixels
Displayed:140 times
Color Space:sRGB
Contrast:0
DateTime Original:2010:11:10 04:36:52
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/8 sec
FNumber:f/2.7
Flash:No Flash
Focal length:6 mm
ISO:160
Light Source:Unknown: 0
Make:Eastman Kodak Company
Max Aperture:f/2.7
Model:KODAK EASYSHARE C433 ZOOM DIGITAL CAMERA
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=3926
Favorites:Add to Favorites

Comment 1 to 9 of 9
Page: 1

streetlight98   [Jul 24, 2011 at 11:06 PM]
Could a two lamp 20w T12 ballast run 1 40w T12 lamp?
A_lights   [Dec 12, 2011 at 08:04 PM]
thats a good question, i will try it when i get home, i think you would have to run the lamp between the red and blue leads and cap the yellows
streetlight98   [Dec 12, 2011 at 08:15 PM]
A four lamp F32/t8 ballast can run 8 F17T8 lamps right?
TiCoune66   [Dec 12, 2011 at 08:38 PM]
I wouldn't be so sure... seems too simple to be true LOL. I know that F20s and F40s run at slightly different currents, not sure about F17s and F32s.
GullWhiz   [Dec 12, 2011 at 09:04 PM]
Well Vince, I have had bought a cheap workshop light...and it had an electronic ballast that on it said it can run F40T12 25 watt, F40T12 34 watt F40T12 40 watt F32T8 32 watt Rolling Eyes
A_lights   [Dec 12, 2011 at 10:21 PM]
@Jace :That's ballast will run all lamps arround 32-34 watts maybe 250mA if that , if it's RS it won't dammage the lamp underpowering it
joe_347V   [Dec 13, 2011 at 04:06 AM]
Rolling Eyes I have a couple of cheapo home store specials that have a similar ballast.

Well at least they used a standard ballast mount so I can stick a good ballast in when it blows.
A_lights   [Dec 14, 2011 at 11:43 PM]
@streetlight98: you can run a F34 or F40 lamp between the red and blue leads , and in terms of the instant start T8 lamps they run at the same current 230mA (I think) so you can run them in series
joe_347V   [Dec 14, 2011 at 11:53 PM]
That was my guess since the two lamp trigger start ballasts run the lamps in series which means that they should have a higher OCV which should start the F40s. Note that the current is a bit lower than a single lamp F40 NPF ballast (.65A) so I guess any F40s you run like this will be underdriven.

I'm not sure about the HPF trigger start ballasts though.

Comment 1 to 9 of 9
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