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tandem F90T17 fixture
Works perfectly, both ballasts original GE's 
Keywords: Lit_Lighting

tandem F90T17 fixture

Works perfectly, both ballasts original GE's

Screenshot_2014-06-23-19-28-53_zed20140630_185708_70p.jpg ZedusaTempImage_zed20140627_223617_70p.jpg ZedusaTempImage_zed20140627_223617_70p.jpg ZedusaTempImage_zed20140627_223617_70p.jpg ZedusaTempImage_zed20140627_223617_70p.jpg
File information
Filename:ZedusaTempImage_zed20140627_223617_70p.jpg
Album name:A_lights / Fluorescent
Keywords:Lit_Lighting
Filesize:100 KiB
Date added:Jun 28, 2014
Dimensions:1499 x 1999 pixels
Displayed:230 times
Light Source:Unknown: 0
Make:Samsung
Model:SAMSUNG-SGH-I317
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=17736
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Comment 6 to 25 of 25
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A_lights   [Jun 28, 2014 at 03:37 AM]
I picked up 3, one went to funkybulb, one for Dave and 1 for me
Sounds like a slow starter! Confused
streetlight98   [Jun 28, 2014 at 03:41 AM]
Maybe a slow starter but when i bought about a dozen T17 starters i tested them in his fixture (GE Watchdog, standard GE, and Sylvania) and they all started very slow, some taking nearly 30 seconds! I think they just take long to preheat in general since they're such large lamps. F40s tend to instant start for me. I find the 14-20W lamps to be the most blink-happy. Cool
A_lights   [Jun 28, 2014 at 03:43 AM]
Very interesting! Maybe that side of the ballast is weaker? I know some 2x40W preheat ballasts on the lag side will struggle to light a lamp sometimes
streetlight98   [Jun 28, 2014 at 03:48 AM]
Yeah not sure. The fixture is a two-lamp louvered fixture with one lamp and one starter so could the fact that there's only one lamp slow the existing lamp from starting? In a year or so I'm going to replace it with a 2X F32T8 shoplite.
A_lights   [Jun 28, 2014 at 03:50 AM]
Yes somehow the lag lamp depends on the lead lamp to help it start..I can't explain why, its odd though , pretty nice your getting it
streetlight98   [Jun 28, 2014 at 03:57 AM]
Yeah I'm getting that one and an indentical fixture from my great-aunt. I got plenty of starters. I have i think close to a dozen and manual reset starters are like mercedes benz, they don't die lol. All I need is to find a case of lamps and I'm good. When I'm desperate for lamps after the existing ones die I'll probably break down and cough up the cash for the lamps but it kills me to spend so much on lamps even if they're T17s. From what i hear, the quality of the GE lamps hasn't been good and recently they pulled the plug on their T17 lamps altogether so the cost of the lamps is only going to go up now.
traffic light1   [Jun 28, 2014 at 10:30 PM]
This is why I love HO it is different and very cool and can come with electronic ballast. but I don't dig myself in a deep debt.
A_lights   [Jun 28, 2014 at 10:31 PM]
These are VHO technically and diffused/less glary than a T12/VHO
traffic light1   [Jun 28, 2014 at 10:39 PM]
Sorry, what I was saying has zero to do with that Confused Its just $300 in lamps is WOW, I am just happy like the song that I am not into this. I was just saying I like HO because I don't have to blow $. Hope you are all keep'n all this in EMP proof'n.
A_lights   [Jun 28, 2014 at 10:46 PM]
Yeah recent years these lamps have been hard to find, I wish i would have bought lamps back when they were cheaper, ive seen lamps for as much as $50 ea so $12 ea isn't bad at all
I like HO too! I recently got 4 Phllips ultralume 3500K lamps
traffic light1   [Jun 28, 2014 at 10:50 PM]
I would hate to see you all with no ballast I guess I should buy on and store it. 50/50 That is what would go in the event of an EMP.
A_lights   [Jun 28, 2014 at 11:10 PM]
Good idea..does EMP affect magnetic ballasts? I have a spare ballast for this fixture too
streetlight98   [Jun 28, 2014 at 11:49 PM]
As far as I know, EMPs are damging to "sensitive electronics" (meaning stuff with circuit boards like electronic ballasts, computers and other "sensitive electronics) Lighting strikes are the stongest natural EMPs so unless your lights get struck my lightning they're safe (and if that happens you'll be lucky to have anything left of the light lol) Apparently there's man-made EMP weapons too.

But the whole EMP thing is really not that serious of an issue. It's not like an EMP is going to appear out and nowhere and target your electronics. Just don't leave your lights out when there's lightning lol.

If GE and others had kept advancing their T17s like they did with T12s (like advancing the electrode design and phosphor type) then T17s would have probably become much more efficient and would have lasted mught longer than 9000 hours but they didn't do that. the T17s GE made last year were the same T17s they made back in the 40s and 50s just with minor cosmetic differences and probably less mercury. But now GE stopped making them so these lamps are going to be impossible to find very soon. Sad
traffic light1   [Jun 29, 2014 at 01:20 AM]
No, It takes out the power grid too. They come from the sun. Crying or Very sad EMP, last time one hit it lit the telegraph wires on fire Shocked as far as I know 50/50 it could cause a massive surge and kill the ballast Crying or Very sad I have been study'n this for 5 years now and if one hits we will have no power for 5 to 6 years Wink That must mean it KILLS all electrical things. It KILLS all transformers Mad so I would say it kills all ballast that have power to them at the too Crying or Very sad best hope it is off.
streetlight98   [Jun 29, 2014 at 03:37 AM]
Hmm I find that a little hard to believe, no offense. Just sounds a little too sci-fi... Confused
traffic light1   [Jun 29, 2014 at 10:26 AM]
It does I just watched a 3 hour thing on it Mad This as happen before Crying or Very sad I just wish the USA people were more ready for this Sad People need to spend just 10min to know what will happen when one comes.
don   [Jul 15, 2014 at 02:48 AM]
@Aaron, I'd love to see this light next time we hang out!

@Mike, there is a documented case in 1859 and many folks are wondering if we are going to upgrade the grid to help protect from this ever happening again. You know how it is with money...companies won't spend it on improvements until the last minute or when it's too late.
streetlight98   [Jul 15, 2014 at 10:34 PM]
Wow this is really messed up stuff! It sounds so sci-fi! Shocked
GEsoftwhite100watts   [Jul 26, 2014 at 10:08 PM]
Yeah if that happens we're just going to be SOL for 5-6 years I guess...would it affect lights that were disconnected from power at the time? Or run off-grid on a a generator or a solar farm or wind turbines or something?
traffic light1   [Jul 27, 2014 at 11:32 AM]
LPS lamps will be fine Incandescent is not some cfls will do ok if in a EMP proof can Crying or Very sad short list. I have told you all this for a year now, 50% we get hit by one 2015/2016

Comment 6 to 25 of 25
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