Eric B Posted December 10, 2016 Share #2951 Posted December 10, 2016 Both LED and CFL bulbs come in a variety of color temperatures. You can get LED bulbs in 2700 (incandescent), 3100 (halogen), 4000 (cool white), or 5000 k (daylight). CFLs come in the same variety of color temps. Older bulbs (CFL and LED) had some odd color casts, but that's no longer true with newer CFL and LED bulbs. You can't easily tell them apart by the color alone. Perhaps MTA traditionally bought 4000k CFL bulbs and 3100k LED bulbs (for example) in the past, but that doesn't mean new LED purchases won't be a different color temp (that matches the CFLs you've seen in service.) With the bulbs Transit uses, CFL's are 2700K (incandescent color), and the LED's are all 4000-5000K. The shape of the bulb is different as well. LED's need heat sinks, so the whole bottom of the bulb is metal, and only the dome is lit. The CFL's is a more tubular shaped bulb, with a smaller ballast in the base. What I saw on Second Ave. was the same old CFL's. 0 Quote Link to comment Share on other sites More sharing options...
bobtehpanda Posted December 10, 2016 Share #2952 Posted December 10, 2016 Those pictures remind me of that really optimistic Hudson Yards "opening" 0 Quote Link to comment Share on other sites More sharing options...
itmaybeokay Posted December 10, 2016 Share #2953 Posted December 10, 2016 Cause LED lighting gives out a different color than ones in the SAS tunnels. As was stated LED and CFL are available in a great many color temperatures. Both LED and CFL bulbs come in a variety of color temperatures. You can get LED bulbs in 2700 (incandescent), 3100 (halogen), 4000 (cool white), or 5000 k (daylight). CFLs come in the same variety of color temps. Older bulbs (CFL and LED) had some odd color casts, but that's no longer true with newer CFL and LED bulbs. You can't easily tell them apart by the color alone. Perhaps MTA traditionally bought 4000k CFL bulbs and 3100k LED bulbs (for example) in the past, but that doesn't mean new LED purchases won't be a different color temp (that matches the CFLs you've seen in service.) Any fluorescent - except one specifically designed for film/photo has a green spike in it's response. Compared to the fluo station lights those look LED to me - but not a fair comparison. With the bulbs Transit uses, CFL's are 2700K (incandescent color), and the LED's are all 4000-5000K. The shape of the bulb is different as well. LED's need heat sinks, so the whole bottom of the bulb is metal, and only the dome is lit. The CFL's is a more tubular shaped bulb, with a smaller ballast in the base. What I saw on Second Ave. was the same old CFL's. The shape of the bulb is different for LED but it's not apparent in the video the shape of the bulb. Honestly - I could have sworn I saw the heatsinked/only-dome-lit bulbs in the 2700k variety - but you've seen a lot more of the tunnels than I have. 4/5000k leds are generally cheaper and more lumens/watt (hence why they're used for streetlights now) so maybe thye would stay with them for tunnel lighting if they were going LED. TBH its possible they ordered the bulbs for SAS years ago before the LED became common. I'm just a bit of a lighting enthusiast which is why I was like what do you mean CFL. (big part of cinematography) 0 Quote Link to comment Share on other sites More sharing options...
Around the Horn Posted December 10, 2016 Share #2954 Posted December 10, 2016 Those pictures remind me of that really optimistic Hudson Yards "opening" I thought so too, but this is much, much further along than Hudson Yards when Bloomberg visited. 0 Quote Link to comment Share on other sites More sharing options...
TransitJusticeForAll Posted December 10, 2016 Share #2955 Posted December 10, 2016 Well people, this is it. We are almost at the end of construction for the upcoming IND Second Avenue Subway. The will be extended from Midtown 57 St-7 Ave to Upper East Side 96 St- 2 Ave. You think this will be completed by New Years Eve? Please enjoy and subscribe to my channel 0 Quote Link to comment Share on other sites More sharing options...
Eric B Posted December 10, 2016 Share #2956 Posted December 10, 2016 (edited) The shape of the bulb is different for LED but it's not apparent in the video the shape of the bulb. But I've seen them up close, when I went up there to qualify. Not only the shape, but the heat sink makes the bulb longer, so that they stick out of the fixture. Honestly - I could have sworn I saw the heatsinked/only-dome-lit bulbs in the 2700k variety - but you've seen a lot more of the tunnels than I have. 4/5000k leds are generally cheaper and more lumens/watt (hence why they're used for streetlights now) so maybe thye would stay with them for tunnel lighting if they were going LED. What you're seeing is the 4000K variety, having yellowed after awhile. (Not sure what makes them yellow, as the LED's are supposed to have much less UV radiation than fluorescents), but I've noticed that the color temperature does seem to go down, so that some look almost like 2700; like in the 3000 range. Edited December 10, 2016 by Eric B 0 Quote Link to comment Share on other sites More sharing options...
rbrome Posted December 10, 2016 Share #2957 Posted December 10, 2016 (edited) I agree, it looks good for the most part. But the question has always been whether they can get elevator, escalator, and fire system testing done in time. Those aren't the kind of things you can determine from photos. We'll see. I'm no fan of Cuomo, but I am glad to see him pushing them to stick to a deadline (as long as no shortcuts are taken.) Edited December 10, 2016 by rbrome 0 Quote Link to comment Share on other sites More sharing options...
R10 2952 Posted December 10, 2016 Share #2958 Posted December 10, 2016 Not going to get into the whole discussion of lighting efficiency per se, but I will say that I always liked the long fluorescent tubes they used for lighting in the 63rd Street Tunnel and the ones they retrofitted into the tunnels of the upper Crosstown Line in the '80s. Those and the mercury bulbs they used to have in the IRT tunnel to Brooklyn. 0 Quote Link to comment Share on other sites More sharing options...
CenSin Posted December 10, 2016 Author Share #2959 Posted December 10, 2016 (edited) Well, from the looks of it, they're making good progress. It almost seems ready for the December 31st opening. I think I’ll reschedule my SAS opening date to December 32. I have my doubts it will open on time. Edited December 10, 2016 by CenSin 0 Quote Link to comment Share on other sites More sharing options...
JubaionBx12+SBS Posted December 11, 2016 Share #2960 Posted December 11, 2016 This thing will open middle of next year. Let's not kid ourselves. 0 Quote Link to comment Share on other sites More sharing options...
TheNewYorkElevated Posted December 11, 2016 Share #2961 Posted December 11, 2016 This thing will open middle of next year. Let's not kid ourselves. It depends if everything goes well. I think I’ll reschedule my SAS opening date to December 32. LMAO! 0 Quote Link to comment Share on other sites More sharing options...
Mysterious2train Posted December 11, 2016 Share #2962 Posted December 11, 2016 The Launch Box has a detailed post about construction with some nice pictures for the interested. 1 Quote Link to comment Share on other sites More sharing options...
Union Tpke Posted December 11, 2016 Share #2963 Posted December 11, 2016 I will be really annoyed if it opens on December 31 as that date is on a Saturday, and that is Shabbat. Since I am Jewish I would be in synagogue and I would not be able to go on the subway. It's not like I am expecting it to open in 2016 anyway. The Launch Box has a detailed post about construction with some nice pictures for the interested. On your Rockaway Beach Branch map it says Grand Avenue Newton, instead of Newtown. 0 Quote Link to comment Share on other sites More sharing options...
Around the Horn Posted December 11, 2016 Share #2964 Posted December 11, 2016 Cuomo was at 86th Street this morning... https://twitter.com/melissadderosa/status/808009950798680067 2 Quote Link to comment Share on other sites More sharing options...
MysteriousBtrain Posted December 11, 2016 Share #2965 Posted December 11, 2016 Cuomo was at 86th Street this morning...https://twitter.com/melissadderosa/status/808009950798680067I see that they changed the date to Jan 1st. As long as it's not the 31st, I'm good. 0 Quote Link to comment Share on other sites More sharing options...
Around the Horn Posted December 11, 2016 Share #2966 Posted December 11, 2016 I see that they changed the date to Jan 1st. As long as it's not the 31st, I'm good. I'd interpret 'by Jan 1" as opening before 2017 aka December 31st... But also there's a blog someone linked to here, that claims inside sources know that it will open in some capacity on December 30th 0 Quote Link to comment Share on other sites More sharing options...
Wallyhorse Posted December 11, 2016 Share #2967 Posted December 11, 2016 What you might see is it open at like 7:00 or 8:00 PM on New Year's Eve. Then it's still before the deadline and it allows the to say they got it done before the new year. 0 Quote Link to comment Share on other sites More sharing options...
Around the Horn Posted December 11, 2016 Share #2968 Posted December 11, 2016 What you might see is it open at like 7:00 or 8:00 PM on New Year's Eve. Then it's still before the deadline and it allows the to say they got it done before the new year. That would be fun (but hell for transit employees) 0 Quote Link to comment Share on other sites More sharing options...
Around the Horn Posted December 12, 2016 Share #2969 Posted December 12, 2016 (edited) According to Dan Rivoli on Twitter, the Independent Engineering Consultant just gave the go ahead for a December 31st opening. It could possibly be officially announced this week... https://twitter.com/danrivoli/status/808365907940691973?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Etweet Edited December 12, 2016 by Around the Horn 0 Quote Link to comment Share on other sites More sharing options...
T to Dyre Avenue Posted December 12, 2016 Share #2970 Posted December 12, 2016 If they can get it open for service on the 30th or 31st, I'll start believing in miracles. 0 Quote Link to comment Share on other sites More sharing options...
Union Tpke Posted December 12, 2016 Share #2971 Posted December 12, 2016 What you might see is it open at like 7:00 or 8:00 PM on New Year's Eve. Then it's still before the deadline and it allows the to say they got it done before the new year. If that is the case I might be able to do it. Shabbat comes out at about 5:15 or so. 0 Quote Link to comment Share on other sites More sharing options...
paulrivera Posted December 12, 2016 Share #2972 Posted December 12, 2016 I heard Cuomo is getting involved in this, so I'm pretty sure at this point the 2nd Avenue line will open in 2016. The magically becomes a very efficient and swift agency once Cuomo forces them do something, so this should be good news. 1 Quote Link to comment Share on other sites More sharing options...
IAlam Posted December 12, 2016 Share #2973 Posted December 12, 2016 I'd interpret 'by Jan 1" as opening before 2017 aka December 31st... But also there's a blog someone linked to here, that claims inside sources know that it will open in some capacity on December 30th The only reason I'd see it open January 1st over December 31st is the fact that January 1st is a Sunday. 1 Quote Link to comment Share on other sites More sharing options...
Eric B Posted December 13, 2016 Share #2974 Posted December 13, 2016 According to Dan Rivoli on Twitter, the Independent Engineering Consultant just gave the go ahead for a December 31st opening. It could possibly be officially announced this week... https://twitter.com/danrivoli/status/808365907940691973?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Etweet That report doesn't mention the escalators and elevators, which are what might hold it up. 1 Quote Link to comment Share on other sites More sharing options...
rbrome Posted December 13, 2016 Share #2975 Posted December 13, 2016 It does. Read it all. 0 Quote Link to comment Share on other sites More sharing options...
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