Return to the thumbnail page Display/hide file information See previous file

F28T5 lithonia lighting ballast

F28T5 lithonia lighting ballast

Click to view full size image

Says Accupro, but It seems like it's some sort of house brand for Lithonia. Nothing impressive, other than how small it is.

DSC03357.JPG DSC03359.JPG DSC03360.JPG DSC03311.JPG

Light Information

Light Information

Manufacturer:AccuPro (Lithonia)
Lamp
Lamp Type:T5 HE
Fixture
Fixture Type:Strip light
Ballast Type:HF RS electronic
Electrical
Wattage:21W, 28W, 2 x 14W
Voltage:120V

File information

File information

Download: Download this File
Filename:DSC03311.JPG
Album name:SOX55W / Projects, jobs, etc.
Keywords:Gear
File Size:403 KB
Date added:Sep 07, 2011
Dimensions:2048 x 1535 pixels
Displayed:92 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-58203
Favorites:Add to Favorites
Comments
arcblue
Full Member
***
Offline

Posts: 174
View Gallery


View Profile Personal Message (Offline)
Sep 07, 2011 at 09:00 PM Author: arcblue
They don't start like a magnetic rapid-start lamp...the tube glows at one end for a second and then lights fully.

I'm lampin...

Lightingguy1994
Sr. Member
****
Offline

Gender: Male
Posts: 374
View Gallery


View Profile Personal Message (Offline)
Dec 17, 2017 at 03:01 PM Author: Lightingguy1994
According to the ballast diagram, the 2 lamps are wired in series and the part where the lamps connect to each other is not getting any voltage applied to it for cathode heating. That to me screams early lamp death. True rapid start heats all cathodes before ignition.

However.... Such a wiring setup would be interesting for a normal instant start 2x F32T8 setup!
xmaslightguy
Hero Member
*****
Offline

Gender: Male
Posts: 788
View Gallery

^homebuilt fixture


GoL ATL
View Profile WWW Personal Message (Offline)
Dec 17, 2017 at 03:35 PM Author: xmaslightguy
I have lights with these. They're programmed-start.


@Lightingguy1994:
2xF32 in series like that will work just fine on a F96T8 ballast (or a pair of F17's in series on a F32 ballast...technically a 4xF32 ballast could run 8x F17's )

Just thought about something with these, they might mercury-migrate a pair of lamps - if the one bad end was put in the center (otherwize it'll trip the EOL protection). I think I might have to try that sometime.....

Colored Fluorescent's such as F40T12 Red or  Green or Blue are awesome...

Lightingguy1994
Sr. Member
****
Offline

Gender: Male
Posts: 374
View Gallery


View Profile Personal Message (Offline)
Dec 17, 2017 at 04:29 PM Author: Lightingguy1994
@xmaslightguy

Years ago I did a test with a 2xF32T8 quicktronic IS ballast with two F32T8 in series and it worked great.
I think it would be okay since a typical 2lamp ballast sees 8ft of lamp load either way

Below is my attempt at a diagram, it may not appear properly.
Both blue wires to lamp1, lamp1 to lamp 2 then 2 reds to 1 red
┏┓
█︱
█︱
█└---Red---------------------------------------------------┐
█==Blue==[▢▢▢▢▢▢]==[▢▢▢▢▢▢]=>--┘
xmaslightguy
Hero Member
*****
Offline

Gender: Male
Posts: 788
View Gallery

^homebuilt fixture


GoL ATL
View Profile WWW Personal Message (Offline)
Dec 18, 2017 at 08:10 PM Author: xmaslightguy
@Lightingguy1994:

True, a 2xF32 ballast 'sees' 8-feet, but it 'sees' it as 2x 4-feet (1 per output) ... what you did there will appear differently to the ballast - it will *physically have* 8-feet, but that wired for 2x overdrive isn't the same as 2x 4-feet, infact if I calculated right it should be around 12-feet!

Say with 2 lamps wired "normal" it is 64w (32x2)
With 2 lamps in series & wired for 2x overdrive like you did, a single 8-feet by itself would be 64w, but with 2x overdrive, it should be around 96w (2x overdrive will now actually double the lamp power - its more like 1.5x (and up to 1.75x depending on the ballast, but figure 1.5x for most))
A ballast -may- or -may not- be able to drive more than the length it was designed for.

Colored Fluorescent's such as F40T12 Red or  Green or Blue are awesome...

© 2005-2019 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery