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New standard house lamp

New standard house lamp

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Right now I have a mix of Instant Start T8 and Rapid Start T12 fixtures in my house. My stock of T12 lamps is gone so I'm standardizing on this T8 lamp, as the T12 lamps go out I plan to put in programmed start T8 ballasts. These are fixtures I use a lot so the lack of flicker and energy savings with T8 lamps are too much to ignore. People recommended GE or Sylvania, the tie goes to Sylvania since I'm closer to a Menard's than a Lowe's.

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Light Information

Light Information

Manufacturer:Sylvania
Model Reference:Octron T8

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Album name:mdcastle / Misc
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Date added:Jul 25, 2018
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DieselNut
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jonathon.graves johng917 GeorgiaJohn
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Jul 25, 2018 at 09:05 AM Author: DieselNut
You can still purchase T12 lamps. Why not leave the lights as they are as long as the ballasts are good?

Preheat Fluorescents forever!
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Jul 25, 2018 at 04:25 PM Author: streetlight98
Yeah I'd say leave the T12s too personally. GE makes an SPP35 F40T12 that's a beautiful color and 2900 lumens, just as bright as any T8. The energy savings from going to T8 over T12 are insignificant for a home. Odds are you have less than a dozen fixtures so it's not really worth it unless you're OCD about keeping everything uniform. The most you'll be saving per fixture would be 20W. Even if you pay 20 cents per kWh (which is artificially high to prove a point) you'd only save four cents per hour you use the fixture. And if you ran the fixtures you converted 24/7 for a full week, you'd save a grand total of $0.67 per fixture. And that's a full week (168 continuous operating hours). So unless you have a building with hundreds of fixtures it doesn't make sense to invest in converting to T8. Especially now, when T8s themselves are considered obsolete by the industry. It's not long before the T8 selection is just as skimpy as the remaining T12 selection.

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Jul 25, 2018 at 05:31 PM Author: Patrick
Yep, fluorescent in general has shifted into the obsolete category. On nearly every mainstream DIY/electric forum if you post a question or issue about a fluorescent fixture you'll get back a recommendation to switch to LED.

I suppose it comes down to what you like. If that's T8 on electronic ballasts, that's fine. However, if you truly want to modernize and save energy, direct-wire in some LED tubes. You can even leave the old ballast in the fixture disconnected.

On the other hand, if you aren't satisfied with the current generation of T12s, you can always seek out for pre-2012 lamps. Some online retailers still have a small stock, and they'll pop up at ReStore and the like.

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mdcastle
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mdcastle 26956281@N02
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Jul 25, 2018 at 07:50 PM Author: mdcastle
I suppose just buying two kinds of lamps in perpetuity makes more sense than swapping out a bunch of ballasts. I do want to swap out the kitchen ballast though, because with knowing instant start ballasts being hard on lamps I tend not to turn it off when I leave the room.

I have one T8 only instant start fixture in the kitchen that gets used a lot, three instant start basement lights that are labeled take either T8 or T12, and seven T12 only rapid start basement lights. I don't want to swap in a T12 ballast in the kitchen due to the flicker from magnetic ballasts, and the extra energy used there. In the basement the electronic ballasts are above my workbench and my reading nook, ie where flicker from rapid start ballasts would be objectionable.

The instant start American Fluorescent basement fixtures I have, I believe that despite the dual labeling these are actually designed for T8s since they seem to under-drive T12 lamps. The fixtures equipped with F40 T12 lamps draw 49 watts, and with F32T8 lamps draw 54 watts.

3500K LED tubes seem to be less common and I dislike LEDs for areas where I'm working or reading, although I use them in the hallway fixtures that are left on most of the time, and outdoors where they're on all night because of the energy savings in that application.
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Jul 25, 2018 at 08:23 PM Author: Patrick
Yeah, maybe install F32T8 in those fixtures for either and keep some spare T12s for the others. I don't like flicker either but usually don't perceive it with fluorescents that are fully warmed up as long as they don't have a phosphor with lower persistence such as Chroma 50. On a two-lamp ballast that operates the lamps out of phase, even my Design 50s are OK. I first put the Design 50s in an LOA magnetic fixture with independent chokes, but they were too flickery in it.

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jonathon.graves johng917 GeorgiaJohn
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Jul 25, 2018 at 09:20 PM Author: DieselNut
I notice the flicker on LEDs more than fluorescents. Nearly all of my daily used lights are magnetic ballasted 2x40 or 3x40 T12 preheat so I never notice flicker.

Preheat Fluorescents forever!
I love diesel engines, rural/farm life and vintage lighting!

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Jul 26, 2018 at 10:45 AM Author: Lightingguy1994
If you do decide to stay T12, just make sure to pick up those GE lamps soon, they are here today but may be gone tomorrow, one of the things I hate the most about lighting industries.

I personally want to keep most fixtures T12 magnetic if they are capable, and saving my T8s and rapid start series electronic ballasts for the more modern fixtures that cant fit full ballasts and T12s.
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Jul 26, 2018 at 11:30 AM Author: Cal
I’ll give up my fluorescents (t12 or t8 ) when they pry them from my cold dead hands. Have a 40W SRS fitting, a 20W/18W electronic ballast dimmable fitting, an incandescent driven 20W, a 2x18W, 2x individual f15t8 fittings and an f8t5 all in regular use. Lamp bans in my house can off!
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Down with lamp bans!


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Jul 27, 2018 at 12:11 AM Author: nicksfans
Given your preferences, I agree that a programmed start T8 ballast in the kitchen is the best choice.

As for the T12 lights, I'll side with Patrick and say either keep them T12 or retrofit with direct wire LED tubes. I wouldn't really bother retrofitting anything to T8 these days unless I got the ballasts/lamps for little or nothing. If I'm gonna spend $$$ on a retrofit, I think I'd rather go LED.

I like my lamps thick, my ballasts heavy, and my fixtures tough.

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