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Philips Alto F15T8/CWP

Philips Alto F15T8/CWP

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With the GE F15T8/D from Indonesia that has been in my Panasonic desk lamp since I got it 1.5 years ago now mercury starved and uselessly dim, I decided to get a new lamp for it. I wanted to get a 5000k or 5500k lamp, but I couldn't find any locally, and nobody responded to my thread on the Wanted forum here. So I settled for this lamp, which I paid $7 for at Home Depot. Good working lamp, very bright. Starts at full brightness.

Someone clarify something for me - I thought the name Cool White Plus indicated that it was a high-CRI phosphor to some degree, and that's the only reason I was willing to pay $7 for this lamp. But it wasn't until I got home that I read the CRI rating of 62 on the package. And the color of this appears no different from any usual Cool White. So what exactly is this? Just an old-school Cool White? If so, why the name "Plus"?

IMG_5375.JPG IMG_4938.JPG IMG_5271.JPG IMG_5161.JPG

Light Information

Light Information

Manufacturer:Philips
Model Reference:F15T8 Cool White Plus/18
Lamp
Service Life:7500 hours
Optical
Lumen Output:870
Color Temperature:4100k
Color Rendering Index:Uh?
Physical/Production
Factory Location:Holland
Fabrication Date:2014

File information

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Filename:IMG_5271.JPG
Album name:themaritimegirl / Fluorescent lamps
Keywords:Lamps
File Size:331 KB
Date added:Dec 15, 2015
Dimensions:2465 x 1764 pixels
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HU112
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Chester


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Dec 15, 2015 at 09:29 PM Author: HU112
Possibly the same phenomenon as the Osram tubes. The 'energy saver white' and 'basic plus white' are exactly the same 35-535 phosphor, but they put on 2 different trademarks.

Did you try this eBay listing?
http://www.ebay.com.hk/ulk/itm/161105836774

No more cheapy crappy Chinese junk, please.

themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Dec 15, 2015 at 09:37 PM Author: themaritimegirl
Unfortunately it will come to $16 after bringing it from the US to Canada, quite a bit for a single lamp.

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don93s
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Dec 15, 2015 at 10:52 PM Author: don93s
I have a bunch of NOS Sylvania made F15T8 Duro-Test Vita-Lites (5500k) to spare but is shipping going to be too expensive from MI to Canada?
HU112
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Chester


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Dec 15, 2015 at 11:00 PM Author: HU112
It would be HK$53.87 (tube, 6.95USD) vs HK$250.97 (shipping, 32.38USD) in my case.
Just see if I can order a few of the Osram L15W/954 from a local retailer at a lower price

No more cheapy crappy Chinese junk, please.

themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Dec 15, 2015 at 11:19 PM Author: themaritimegirl
Don, I've looking at USPS's shipping calculator, and it looks like if you can keep the package under 24" long, 9" wide and 9" deep, and under 1 lb, you can send it to me for about $10. If you think that's something you can do, I'd totally be game for that!

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don93s
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Dec 15, 2015 at 11:24 PM Author: don93s
OK, I'll get back to you on that. I still have other packages to take care of too.
themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Dec 15, 2015 at 11:26 PM Author: themaritimegirl
Sure thing. You can send me a message whenever you're ready. Thanks Don!

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sol
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Dec 16, 2015 at 04:21 AM Author: sol
Regarding Philips fluorescent lamps made in Holland, I have one in /D in use 24/7 since the summer of 2011. That makes it over 46 000 hours. Much longer than the Indonesian GE lamps. I have a couple of these Cool White Plus in the basement entrance and they appear to be a standard cool white. They are bright, however in the wintertime, with freezing temperatures they start slightly dim but warm up quite fast. Too bad they don't offer these in triphosphor in stores.
themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Dec 16, 2015 at 03:43 PM Author: themaritimegirl
Wow, that's impressive. Is that an Alto lamp as well?

There is hardly any choice in fluorescent lamp phosphors in stores around here. My choices for an F15T8 are another GE /D from Indonesia at Walmart, a GE /CW from Indonesia at Canadian Tire, and this lamp from Home Depot. Which is where this lamp is going right back to if the deal with Don works out.

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Liam
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Dec 16, 2015 at 05:17 PM Author: Liam
These Holland tubes are excellent, you will be looking at a good 20-30.000 hours out of this.

My gallery http://www.lighting-gallery.net/gallery/index.php?cat=11495

sol
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Dec 16, 2015 at 07:15 PM Author: sol
@MaritimeMan : Yes, my lamp is an alto but it is made in Holland, just like yours. Only difference is the colour. Eventually, I'd like to get some F15 in colour 835, but I'll probably end up getting a full case on eBay, probably from Europe (Osram Lumilux or equivalent, they pop up occasionally).
Patrick
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LightingGallery
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Dec 16, 2015 at 09:54 PM Author: Patrick
FYI, Home Depot normally carries 5000K F15T8 lamps. Philips 18 in. T8 15-Watt Natural Light

Patrick C., Administrator
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themaritimegirl
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themaritimegirl themaritimegirl themaritimegirl
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Dec 16, 2015 at 09:57 PM Author: themaritimegirl
Yeah, their American selection is a lot better than their Canadian one. (As with most chain stores.)

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Dec 18, 2015 at 02:15 PM Author: jercar954
The Philips F15T8 lamps now are made in Poland as the Holland plant was closed earlier this year. From my experience,lamps made in Poland are very good quality.

Preheat and T-12 fluorescents forever! Down with LED's and instant start T-8 fluorescents.

good223
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Dec 18, 2015 at 02:45 PM Author: good223
I have these lamps in a dazor lamp and they're very bright.

I can't comment on the life span because I just got them, but I can say they don't like being overdriven almost 1.5x the current. There are already some particles that have fallen from the cathodes.
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Dec 18, 2015 at 04:11 PM Author: Liam
@Jecar Philips in Holland still make tubes they haven't shut, The Poland Philips tubes are ok but there crap compared to French and Holland ones.

My gallery http://www.lighting-gallery.net/gallery/index.php?cat=11495

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Dec 21, 2015 at 01:23 AM Author: rapidstart
Just as a matter of interest I saw 15w T8 NEC Quad Phosphor in Natural White 5000k at the local hardware store for A$15.95.
The Philips 15w cool white was A$5.04

Say 'O' for an Osram, think about tonight today (old advertising jingle)

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Sep 28, 2017 at 12:56 PM Author: freekster0722
Interesting...641? Never seen it before!!
HU112
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Chester


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Sep 28, 2017 at 09:34 PM Author: HU112

Interesting...641? Never seen it before!!

Colour 641 is just standard CW, nothing special.
This colour temp. is also known as 33-640.

No more cheapy crappy Chinese junk, please.

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Sep 28, 2017 at 09:41 PM Author: freekster0722
Okay, I understand...thanks for the info, HU112!
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