Fluorescent Tube Burnout - Black Etch GE F40C50 Chroma 50 - rapidstart_12
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- Опубликовано: 26 фев 2023
- In this video, we do something a little bit different and watch an older GE F40C50 fluorescent tube with a black etch burnout. This tube came to me in a free Metalux WN wraparound fixture that I got from an antique store, and was at end-of-life when I got it. This tube is operating on a programmed start electronic ballast in the video, so we get to see it put on a real light show!
Light Fixture Specs:
Type: Wraparound
Brand: Metalux
Technology: Fluorescent
Ballast Type: Electronic
Ballast Start Mode: Programmed start
Ballast Brand: General Electric
Lampholder Type: Push-in G13
Application: A variety of areas where a normal strip light would be too ugly but there are no drop ceilings for troffers.
Date of Manufacture: 1996?
Light Bulb Specs:
Shape: F40T12
Brand: General Electric
Technology: Fluorescent
Watts: 40 watts
Color: Chroma 50
Color Temperature: 5000k
CRI: 90
Lumen Output: 2250 lumens
Base Type: G13 bi-pin
Application: Garages, workshops, laundry rooms, closets, and other areas where 5000k lamps work. May present a disadvantage in some rooms, as C50 lamps are dim.
Date of Manufacture: Dec 1995
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I love the swirling
Nice burnout, even the tube lost vacuum!
Thanks!
Neat fixture here and as well I have a cooper lighting metalux wn series wraparound wn-217a-unv-eb81-u wraparound 24 inch 0,6 m great quality fixture I got from eBay the frame is a little smaller than the older ones. The older ones has screws on each end caps like lithonia lighting sb (square basket) series wraparounds. For my new cooper lighting wraparound does not have 4 screws on each ends so it’s a newest version of these models. One you have in this video now it’s w-240 cooper lighting metalux pretty good model in the future I might find one looks similar to it but it’s gonna be 2 ft long but I could find a 48 inch version ones to!
Interesting burn out. Can't say that I've seen that happen on a programmed start ballast. Now I have seen the spiraling, very black end with orange flashes occur on a slimline instant start ballast, in the USA the 6 and 8 footers are most frequently run with this circuit and are easily identified by the single pin lamp bases. The instant start ballast open circuit voltage high enough to strike the tube when one or both cathodes have lost the emission coating. The failing tube end get extremely hot and if allowed to continue, oftentimes will damage the lamp holder causing the tube to actually fall out of the fixture, particularly the T8 lamps, if the lamp doesn't melt a pin hole through the glass stopping the discharge first. Many of the higher quality instant start fixtures used porcelain or bakelite sockets which can withstand the heat of a failed lamp, but I have seen a melted socket and shattered glass in a storage unit I was renting about 8 years ago near Livonia Michigan if I remember correctly.
From what I have seen, the cheap plastic slimline and HO sockets usually melt.
You should make videos of your ceiling fans
I am considering doing that in the future.
@@rs12official I have DEMC industrial ceiling fans from the 1980s
@@rs12official my house is 40 years old this year and hasn't been electrical rewired!
I have 2 running circline preheat, many of them were thrown into the storage room
Best ballast have auto shutdown power off🎉
@@user-rk6nj7wc8e Correct
Interesting way ? So the bulb just gave up due to the heat and there for the vacuum ? Interesting, didn't know the tubes would EOL in this way.
That sound the tube made at the end was it losing vacuum because the glass couldn't take the high temperatures. Also, could you explain all the different phosphor types fluorescent tubes use?
The three main types of phosphors:
- Standard calcium halophosphates: These are your run of the mill phosphors. They have a pretty low CRI compared to other phosphor types. Some halophosphate tubes are even below 50 CRI! IIRC, these formulations only contain one type of phosphor, but don’t quote me on it because I’m not completely sure.
- Deluxe halophosphates: These are similar to the standard halophophates, except they add a ton of red phosphor to artificially boost the CRI. That’s why reds look so vibrant under deluxe halophosphate lamps, and also why certain deluxe halophosphate lamps, especially cool white ones, have a strong pinkish or purplish tint to them. Unfortunately, you have to exchange brightness to get that improved CRI, so these lamps are typically only about 75% as bright as their standard counterparts.
- Triphosphors: As the name suggests, these are a blend of there different phosphors, a blue phosphor, a green phosphor, and a red or red-orange phosphor. This creates white light artificially, similar to how a computer monitor or TV does. This white light happens to have a pretty good CRI (usually 80-87) naturally, so they are bright and have good color rendering. There are also “700-series” multiphosphors, which are a blend of triphosphors and standard halophosphates, as well as “900-series” multiphosphors, which I believe are a blend of even more different colors of phosphors than just your standard triphosphors, to achieve higher CRI.
@@rs12official Thanks for the info! I knew about the 3 basic types, but not the sub-types. I also know the old black and white CRT televisions used the same kind of phosphor as /C (color improved) mercury vapor lamps, I believe it was Magnesium Fluorogermanate.
Ios fluorescentes que yo tengo son de IRC 80 Y 90 la mayoría son de 6500 Kelvin
Los demás son de
5000 Kelvin
4100 Kelvin
3000 Kelvin
How old are you now?
13
How do you store these fixtures?
I only have three 4’ fixtures. Two of them are wraparounds. They lean on my wall in my bedroom. The third is a strip light that I got recently, and it is currently being stored under my bed. I may eventually move it to the closet though. All my 2’ and under fixtures are stored in a long, flat bin under my bed, with the exception of my mini DIY F6T5 strip light, which is currently being stored on a shelf on a side table in my bedroom.
What is the fourth 4 foot fixture, and what other 2 foot and under fixtures do you have?
Lowe's still has one or two fluorescent strip lights mixed in with the LED stuff, and my thought is to replace the electronic ballast with the magnetic dimming ballast I should be getting.
@@HIDLad001 I only have three 4’ fixtures. For 2’ and under fixtures, I have a Progress Lighting 2-lamp F20T12 wraparound, a DIY 1-lamp F20T12 wooden board fixture, a Lampi 1-lamp F15T12 strip light, and a Lights of America 1-lamp F17T8 cheapo blacklight fixture. For 4’ fixtures, I have a Lithonia 2-lamp F40T12 wraparound, the Metalux 2-lamp F40T12 wraparound shown in this video, and a Lithonia 1-lamp F40T12 strip light. Also, that’s a good idea for a fixture! Can’t wait to see it!
@@rs12official I didn't read your first comment right. Also, where did you get the enclosure for your DIY strip light?
@@HIDLad001 My dad and I actually made it out of small metal sheets. We cut them into appropriately-sized pieces and welded them together.
Wskj kkd
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Hum. Looks pretty dangerous. How bad is that for the environment and your health?