I first got interested in fluorescent light bulbs back in 1999. I got 3 compact fluorescent and 2 Circline Lights of America bulbs from Home Depot all of them burned out in a week. I have no idea why. I didn't get back into fluorescent bulbs until Walmart came out with Great Value compact fluorescent bulbs. They had squared off ends at first. They actually lasted for quite a while. Some are still in use in less used light fixtures. I was also an early adopter of LED bulbs. They were originally more just novelty lights from China. They were cold/cool white and not very useful. They still worked better in outdoor fixtures in the winter time.
I was actually rather surprised about the CRI and R9 values. They seem quite decent for a fluorescent tube that didn’t bother to tout it’s CRI on the packaging. The next time you decide to do an incandescent Reveal bulb, I’d be very interested to see what the spectrum looks like at 60 and 30 volts
They have been using double U florescent bulbs for decades and in ceiling fixtures that used them were extremely common in public places in the 1970s and 1980s! However most places that had them have replaced those fittings with LED ones.
I still operate a 9watt PL bulb and phillips threaded adapter. While have change the bulb numerous times since 1991. It still works. Uses a reactor ballast So it blinks..bought from home hardware in Delta BC for about $21cad
I also like to collect various types of lighting, I am particularly proud of my score of (around QTY 30+) extremely rare 65-watt 5-foot T12 linear Fluorescent tubes. Here in Australia 2-foot (18-watt) and 4-foot (36-watt) T8 tubes were more common, though LED conversion tubes are rapidly taking over.
Edit: it would appear that I was wrong and the average CRI is already listed as RA. The original comment below is inaccurate besides the fact that the bulb has an impressive CRI for its type. Original comment (not accurate): It would be neat if you calculated the average CRI as well when you’re showing the results. It doesn’t take much time and it would be a lot more convenient for the viewers that don’t want to calculate it themselves. For those who are wondering, the average CRI of* the bulb is about 81.5 (actually 87.2), which is quite good for a bulb of this type. **I feel that it is important to show what a comment was pre-edit to highlight mistakes made so that others don’t make the same mistake. I got this information from a comment somewhere else, and they likely didn’t edit their comment after realizing they were incorrect, therefore I saw it as true information and made the same mistake that they did. Once again, apologies for any complaints made in this comment as I am now better educated in the matter than I was when originally writing the comment.
The average CRI you are looking for is represented by Ra at the top of the graph. Ra is the industry standard for CRI and the average of R1 through R8. Here the CRI is 87.2
I live in Germany and a thrift shop here has tons of used and new(ish) lightbulbs of all kinds...you would probably love it!
I first got interested in fluorescent light bulbs back in 1999. I got 3 compact fluorescent and 2 Circline Lights of America bulbs from Home Depot all of them burned out in a week. I have no idea why. I didn't get back into fluorescent bulbs until Walmart came out with Great Value compact fluorescent bulbs. They had squared off ends at first. They actually lasted for quite a while. Some are still in use in less used light fixtures.
I was also an early adopter of LED bulbs. They were originally more just novelty lights from China. They were cold/cool white and not very useful. They still worked better in outdoor fixtures in the winter time.
I kinda like the videos you made of the Mercury Vapor/High Pressure sodium light fixtures I definitely find those kinds of lights to be cool!
Phillips created? The standard for U replaceable tube light holders
Lâmpada Fluorescente Tubular U 12 Watts 💡
This channel is a sleeper. You give guys like vwestlife a run for their money on this topic. Great job with everything you have been doing here.
Yes and he’s been doing it since like 2009 too.
I was actually rather surprised about the CRI and R9 values. They seem quite decent for a fluorescent tube that didn’t bother to tout it’s CRI on the packaging.
The next time you decide to do an incandescent Reveal bulb, I’d be very interested to see what the spectrum looks like at 60 and 30 volts
@@chrisstorm7704 It must be one of the first rare earth triphosphor bulbs available to consumers.
Thank you!
Amazing!!
They have been using double U florescent bulbs for decades and in ceiling fixtures that used them were extremely common in public places in the 1970s and 1980s! However most places that had them have replaced those fittings with LED ones.
Love it!
I still operate a 9watt PL bulb and phillips threaded adapter. While have change the bulb numerous times since 1991. It still works. Uses a reactor ballast So it blinks..bought from home hardware in Delta BC for about $21cad
I also like to collect various types of lighting, I am particularly proud of my score of (around QTY 30+) extremely rare 65-watt 5-foot T12 linear Fluorescent tubes.
Here in Australia 2-foot (18-watt) and 4-foot (36-watt) T8 tubes were more common, though LED conversion tubes are rapidly taking over.
wow and this kind of thing isnt available in java island sir just let you know i mean your country is so different
Edit: it would appear that I was wrong and the average CRI is already listed as RA. The original comment below is inaccurate besides the fact that the bulb has an impressive CRI for its type.
Original comment (not accurate):
It would be neat if you calculated the average CRI as well when you’re showing the results. It doesn’t take much time and it would be a lot more convenient for the viewers that don’t want to calculate it themselves. For those who are wondering, the average CRI of* the bulb is about 81.5 (actually 87.2), which is quite good for a bulb of this type.
**I feel that it is important to show what a comment was pre-edit to highlight mistakes made so that others don’t make the same mistake. I got this information from a comment somewhere else, and they likely didn’t edit their comment after realizing they were incorrect, therefore I saw it as true information and made the same mistake that they did.
Once again, apologies for any complaints made in this comment as I am now better educated in the matter than I was when originally writing the comment.
The average CRI you are looking for is represented by Ra at the top of the graph. Ra is the industry standard for CRI and the average of R1 through R8. Here the CRI is 87.2
@ ah okay, that makes sense. I’ll edit my comment to better represent that.