T8 Colour Comparison

Comparison of various F32T8 white-colour lamps.
From left-to-right
8000k Sylvania FO32/SKYWHITE/XP 'Sky White'
6500k Philips F32T8/DX 'Daylight'
5000k Philips F32T8/TL850 (sometimes called 'Sunlight')
4100k Sylvania FO32/841 'Cool White'
3500k Philips F32T8/TL735 (sometimes called 'White' or 'Natural')
3000k Philips F32T8/ADV830/EW 'Warm White' (note..this one is a 4' 30w lamp)
2600k GE F32T8/RVL/ECO 'Reveal'

...and yes the entire thing is running off a single ballast :)

File information
Filename:	T8MULTI.jpg
Album name:	XmasLightGuy / Fluorescent Lamps
Keywords:	4-Foot / F32T8
Filesize:	132 KiB
Date added:	10 Oct, 2015
Dimensions:	1024 x 709 pixels
Displayed:	532 times
URL:	http://80.229.24.59:9232/gallery/displayimage.php?pid=1474
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Comment 1 to 8 of 8

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Danny

[10 Oct, 2015 at 09:17 AM]

This is awesome! Very nice photo! How can so many tubes run off one ballasts

Funkybulb

[10 Oct, 2015 at 12:14 PM]

Prolly using F96T8 4 lamp IS ballast? Wired in series pair each? Nice display set up u have here

XmasLightGuy

[10 Oct, 2015 at 04:48 PM]

Its actually a T12 6-lamp HF sign ballast that can run anything from 18-inch to 10 foot lamps ... as long as total length does not exceed 32-feet (and is a minimum of 8-feet)

LightBulbFun

[10 Oct, 2015 at 06:19 PM]

the feet thing is a bit of miss leader since you for example could have a F90T17 witch is 65V 1.5A and 5ft long or a F20T12 witch is 60V 370Ma and 2ft long... but both have close arc voltages so on a constant current they are the same "length" if that makes sense considering this is for HO T12s if a 4ft HO lamp is 85V and a F32T8 is about 135V then you effectively have 44 Feet of lamp on that ballast right now...

AngryHorse

[10 Oct, 2015 at 08:42 PM]

Nice layout of the colours Cool

XmasLightGuy

[10 Oct, 2015 at 09:34 PM]

@LightBulbFun: Actually it lists both Normal & HO T12 lamps (and really just drives then at normal) so think of it as a Normal-Output T12 ballast ... Usually I just run 6 T8 lamps on it (the 7-lamps was only for testing). What I do for when trying something like this is make sure that I'm below the ballast's line-current rating (thus I know I'm not overdriving it)

If it was an actual T12-HO ballast, I bet those T8's would be really bright Cool

(and probably wouldn't last too long being run at something more than 800ma! LOL)

Danny

[10 Oct, 2015 at 09:39 PM]

If one lamp failed jay would the other 6 go out too? Or would they remain lit

XmasLightGuy

[11 Oct, 2015 at 02:56 AM]

@Danny: If one failed, the rest would all remain lit & become just slightly brighter (standard way the HF instant-start ballasts work here).

...except if either one of the last 2 failed, they'd both go out as they are in series.

Comment 1 to 8 of 8

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