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Lithonia TH-350/400MP-PA22-TB-CWI-QRS 350/400w MH (White)
Lamp isn't working so the halogen lamp is lit. Probably a bad igniter as I don't see the debris inside the bulb.

The MH lamp is of unusual wattage. It's 350/400w.
Keywords: Lit_Lighting

Lithonia TH-350/400MP-PA22-TB-CWI-QRS 350/400w MH (White)

Lamp isn't working so the halogen lamp is lit. Probably a bad igniter as I don't see the debris inside the bulb.

The MH lamp is of unusual wattage. It's 350/400w.

CIMG1588.JPG CIMG1587.JPG Lithonia TH-350MP-PA22-TB-CWI-QRS 350w MH (White).JPG PIC6.jpg insidegreenpanel.jpg
File information
Filename:Lithonia TH-350MP-PA22-TB-CWI-QRS 350w MH (White).JPG
Album name:FGS / Lit Lighting
Keywords:Lit_Lighting
Company and Date Manufactured:Lithonia
Model Number:TH-350MP-PA22-TB-CWI-QRS
Wattage:350w or 400w
Lamp Type:Pulse Start Metal Halide
Filesize:38 KiB
Date added:Nov 21, 2009
Dimensions:640 x 480 pixels
Displayed:245 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=35
Favorites:Add to Favorites

Comment 1 to 5 of 5
Page: 1

RCM   [Jun 02, 2010 at 10:26 PM]
I've seen lots of MH lamps fail without the arc tube exploding you know! Smile
Form109   [Jun 02, 2010 at 11:25 PM]
There's a Sonic Drive In near me that has Two 1000 Watt MH Floodlights illuminating the parking lot,i noticed back in 2008 one of the floodlights were buring much dimmer than normal in a Greenish hue...and the other one was lit very darkly with a dim green glow,Two years later the Dark one is no longer lighting and the other one continues to Glow Greenish but it is now Flickering.
dor123   [Jun 03, 2010 at 01:22 PM]
By the way, Gaash lighting in Israel also manufactures these High bays with an intermediate lighting of 250W linear halogen lamps. I think this mothed of intermediate lighting works only on CWA ballasts as in highbays with a reactor ballast for european lamps there is no any intermediate halogen lighting at all.
And indeed, supermarkets in Israel which uses highbays or lowbays installs a seperate fluorescent intermediate lighting instead. Some are lighted always and some are lighted only after a power interruption for several minutes (Can be up to 15 min).
Form109: Greened out MH lamps i saw in Israel only Daylight MH based on rare-earths and ceramic MH lamps when passed their rated life. They were greened out because of the domination of the thallium iodide in the discharge and not related to the mercury like in your case.
GullWhiz   [Jun 03, 2010 at 01:36 PM]
FGS....sometimes they don't explode.....I have a few lamps that didn't explode, just won't start up.....even pulse start sometimes just stop firing up....
gailgrove   [Nov 01, 2011 at 12:13 AM]
Last time I checked 95% of the time a MH lamp won't explode, maybe 5% of the time they will but it is still quite rare. Rolling Eyes

Comment 1 to 5 of 5
Page: 1