Last viewed - One of the Two Wrap Lights

File information
Filename:	mike005_007.JPG
Album name:	Mike / Indoor Lighting
Keywords:	Indoor_Fixtures
Filesize:	354 KiB
Date added:	Nov 13, 2011
Dimensions:	2592 x 1944 pixels
Displayed:	83 times
Color Space:	sRGB
DateTime Original:	2009:03:26 16:36:38
Exposure Bias:	0 EV
Exposure Mode:	0
Exposure Time:	1/4294935168 sec
FNumber:	f/2.8
Flash:	No Flash
Focal length:	28.8125 mm
Light Source:	Unknown: 0
Make:	Vivicam
Model:	V5024
URL:	http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=9488
Favorites:	Add to Favorites

Comment 1 to 8 of 8

Page: 1

A_lights

[Nov 13, 2011 at 10:50 PM]

i have the same fixture! found it in the trash, as it had a dim LPF ballast..
btw if this gets turned on and off a lot with a LPF ballast its gonna kill those Altos rather fast as the cathodes aren't durable
funny thing is some LPF ballasts will light F34 lamps brighter and overheat versus dimmer with F40 lamps and not overheating

streetlight98

[Nov 13, 2011 at 10:53 PM]

these lamps have been in this light for quite some time. Neither of the wraps needed relamping. i don't know what kind of ballast is in these. This one has plastic endcaps. The troffers have Advance magnetic RS ballasts that love to buzz. i love that buzzing sound. Smile

A_lights

[Nov 13, 2011 at 10:57 PM]

oh ok
how does it light up? like slow ish with no flicker? if so its LPF
HPF usually does a bit of flickery start up Smile

and yeah i love that old buzzing ballast sound

streetlight98

[Nov 13, 2011 at 11:01 PM]

The wrap doesn't flicker, so i guess it is LPF. The troffers flicker a bit though. I have a video of them starting up. i'll link it if you're interested.

A_lights

[Nov 13, 2011 at 11:11 PM]

yep i am interested !

oh and are the troffers brighter? troffers always have HPF ballasts, that would be the dead giveaway

joe_347V

[Nov 13, 2011 at 11:42 PM]

I like the wrap lights with metal end caps more than the plastic ones. Also if you check the label inside you can tell whetever it's NPF or HPF from the current draw.

GullWhiz

[Nov 15, 2011 at 03:04 AM]

I had one of those before....it was a LPF ballast with a smaller sized ballast (same size a NPF for F20T12) and when it turns on...oh boy it turns on sloooowly with some flicker....It takes about a good 3-5 seconds to go full brightness!

joe_347V

[Nov 15, 2011 at 03:11 AM]

Was is one of those ballasts that underdrove F40s?

Comment 1 to 8 of 8

Page: 1

Gallery of Lights

One of the Two Wrap Lights

Here's one of the two F40T12 wrap lights in the basement. The rest of the lights are 4 lamp F40T12 troffers. Those 4 lamp T12 troffers are a PITA to relamp. this wrap sports two cool white 40w Altos. The full wattage Altos are very good. They last much longer than the 34w ones.