Flicker-free LEDs?



  • @Pete-S said in Flicker-free LEDs?:

    Does anyone know of a brand of LEDs that don't flicker with AC mains?
    I feel like I'm back in the 80's and 90's with flickering CRTs all around me...

    There was a reason T8 fluorescent light flickers and the replacement T5 electronic ballasts don't.
    Did we throw out everything we learned about our work environment the last 30 years just to save a few Watts?

    I have all Sengled bulbs in my place, no flicker. Also, don't join that network.



  • Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.
    sPfOJKp.jpg



  • @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.



  • @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.



  • @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?



  • @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.



  • @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    I doubt you'll like any LED bulbs then. I think you're best bet will be quality CFL bulbs.

    Yes, in this case, LED light bulbs do take a massive step back from CFL. I don't know about incandescent bulbs.





  • @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    I'm in the group with you. I can see the flicker at 60Hz and it is horrible. Most people can't see it and think it isn't there. I can hear lots of electronics that other people can't hear either. I often walk into a room and wonder why everyone has left on electrical equipment that I can hear the instant I am there, but no one else can tell is powered on.



  • @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    Same boat here. My wife, Monique, is ultra-sensitive to flickering and light hue that heads into the ultra-white/daylight. My sensitivity comes and goes with my migraines.

    We have swapped almost all bulbs in the house for Phillips LEDs of varying types with no flicker anywhere to be found.

    There are a few that buzz which is really annoying. We'll need to take them back and get them swapped for new ones at some point.

    The new Edison style LEDs are da'bomb! Their light is very gentle and warm with a nice even glow from whatever they are installed in. We like them a lot. So, we're starting to flush out the standard style LEDs for Edison in larger fixtures in the house.

    Oh, and we saved a lot of coin swapping all of the 75 Watt halogen pots to LED floods. The electricity bill drop was very noticeable.



  • @PhlipElder said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    Same boat here. My wife, Monique, is ultra-sensitive to flickering and light hue that heads into the ultra-white/daylight. My sensitivity comes and goes with my migraines.

    We have swapped almost all bulbs in the house for Phillips LEDs of varying types with no flicker anywhere to be found.

    There are a few that buzz which is really annoying. We'll need to take them back and get them swapped for new ones at some point.

    The new Edison style LEDs are da'bomb! Their light is very gentle and warm with a nice even glow from whatever they are installed in. We like them a lot. So, we're starting to flush out the standard style LEDs for Edison in larger fixtures in the house.

    Oh, and we saved a lot of coin swapping all of the 75 Watt halogen pots to LED floods. The electricity bill drop was very noticeable.

    Thanks, I'll look into Philips since they should be especially easy to get hold of.



  • @scottalanmiller said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    I'm in the group with you. I can see the flicker at 60Hz and it is horrible. Most people can't see it and think it isn't there. I can hear lots of electronics that other people can't hear either. I often walk into a room and wonder why everyone has left on electrical equipment that I can hear the instant I am there, but no one else can tell is powered on.

    I absolutely had that problem. 60 hz, gouge my eyes out! But I haven't an issue like that with LEDs that I've noticed at least. But I definitely notice when a florescent light is about to go out.. starts pulsing..



  • @scottalanmiller said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    I'm in the group with you. I can see the flicker at 60Hz and it is horrible. Most people can't see it and think it isn't there. I can hear lots of electronics that other people can't hear either. I often walk into a room and wonder why everyone has left on electrical equipment that I can hear the instant I am there, but no one else can tell is powered on.

    I also have this 6th or perhaps 7th sense



  • @scottalanmiller said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @travisdh1 said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    @JaredBusch said in Flicker-free LEDs?:

    @Pete-S said in Flicker-free LEDs?:

    Take your finger or a pen and wave it under the light source.
    If you see more than one finger/pen then it's flickering.

    I can wave my finger in front of my face outside in daylight and see that.

    Nope, you can't. You need a stroboscopic light source for that. And the sun ain't that.

    If you can see individual fingers it's because the light is going on and off and on and off etc. If you try under the sun you will just see one blurry finger.

    Unless someone is getting a headache from the things, who cares?

    I am, so I care. Some people (most?) don't notice.

    It was the same with CRTs. Some people could work fine with 60 Hz refresh rate. I though it was freaking horrible.
    With LCDs it's the backlight that might be a problem on some monitors. Not so much anymore though.

    I'm in the group with you. I can see the flicker at 60Hz and it is horrible. Most people can't see it and think it isn't there. I can hear lots of electronics that other people can't hear either. I often walk into a room and wonder why everyone has left on electrical equipment that I can hear the instant I am there, but no one else can tell is powered on.

    That reminds me ... we moved into our acreage about six years ago.

    The folks that lived there prior to us had these mouse tweeters all over the garage and house. Sonic deterrents I think they are called.

    They drove me absolutely nuts as they seemed to tie right nicely into the tinnitus I have. 😛

    The kids wanted kittens. I'm highly allergic. A trip to Vegas for client work a few months after moving in and when I came back there was a box by the door into the house that was not there before. Three little kitten heads popped up. They had picked them up that day or the day before I don't remember.

    I was not pleased as I knew the ordeal that was to come for me to get at least moderately tolerant to their presence so the jury was out on whether we would keep them or not.

    When I came out to head in to work on Monday morning there were seven, yes 7, dead shrews strewn about the man door and the porch obviously killed by the kittens.

    We kept the kittens and all of those fake sonic tweeters went into recycling.

    It was a fair trade. 🙂

    Oh, and here we are into our second batch of cats six years later and they still don't eat the shrews. They'll eat everything else such as field mice, Richardson's Ground Squirrels, and even Pocket Gofers but they won't touch the shrews. Weird.



  • Went to a store the other day where they had a large number of different LEDs on display.

    Checked them out and all Philips LEDs were flicker free but the noname ones were a mixed bag. Some were flicker free while others were horrible and some in between.


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