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Light bulb flicker when turning on after long time off.

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  • RJARRRPCGP
    replied
    Re: Light bulb flicker when turning on after long time off.

    Originally posted by eccerr0r View Post
    Using the F32T8's in the old magnetic ballasts will probably burn out in that year...
    None of my F32T8s are connected to a electro-magnetic ballast. They are all the new type, much like T5s.

    But I still get that familiar wavy pattern with my 6K-rated ones when cold.

    Leave a comment:


  • eccerr0r
    replied
    Re: Light bulb flicker when turning on after long time off.

    Using the F32T8's in the old magnetic ballasts will probably burn out in that year...
    Should be using electronic ballasts with the T8's.

    Leave a comment:


  • RJARRRPCGP
    replied
    Re: Light bulb flicker when turning on after long time off.

    Originally posted by sam_sam_sam View Post
    These are crap light bulbs 4 foot T8 54 watt you would be lucky if they last a year
    Mine are 32-watt.

    I also have plenty of 48-inch T12s! (40-watt)

    IIRC, the 54-watt ones are usually T5s!
    Last edited by RJARRRPCGP; 02-17-2021, 06:04 PM.

    Leave a comment:


  • sam_sam_sam
    replied
    Re: Light bulb flicker when turning on after long time off.

    Originally posted by stj View Post
    only a communist "green eco nut" would create a 4foot T8!!
    These are crap light bulbs 4 foot T8 54 watt you would be lucky if they last a year

    Leave a comment:


  • stj
    replied
    Re: Light bulb flicker when turning on after long time off.

    only a communist "green eco nut" would create a 4foot T8!!

    besides, they may be the same length as a T12 or the older big ones, but they obviously have a much smaller surface area.
    so your overdriving the fuck out of it to get the Lumens and the lifespan will be short.
    followed by a trip to the landfill to add a bit more phosfor and mercury to the pile!!!

    i really miss my 5foot 65w "fat" tube i had in my old place.

    Leave a comment:


  • RJARRRPCGP
    replied
    Re: Light bulb flicker when turning on after long time off.

    Originally posted by stj View Post
    but they always start a bit dim when they are cold anyway.
    Many CFLs are usually only a bit dim when cold-started, but some are extreme, some look like I'm starting up a metal halide or an HPS!

    I've seen TCP CFLs start up like an HPS!

    CFLs usually are somewhat dim at startup, but not as pronounced as 48-inch T12s and 48-inch T8s, where the Phillips Alto II 48-inch T8s often have a wavy pattern when cold, especially my 6K-rated Alto II 48-inch T8s.
    Last edited by RJARRRPCGP; 02-16-2021, 06:11 PM.

    Leave a comment:


  • sam_sam_sam
    replied
    Re: Light bulb flicker when turning on after long time off.

    There issues with this type of light bulb and the blast if it the old fashion is the starters if it is electronic version sometimes depending on the version it has a tendency to fry the bulbs if they are in a can type of fixture

    Leave a comment:


  • eccerr0r
    replied
    Re: Light bulb flicker when turning on after long time off.

    Yep, that's the "manual start" fluorescent... which I despise even more than the flickery auto-start. It's good to fire and forget lamps like incandescent, having to hold the button down until it strikes is annoying

    Leave a comment:


  • petehall347
    replied
    Re: Light bulb flicker when turning on after long time off.

    my desklamp just has the on off switch that you hold in for about 6 to ten seconds then let it out and it lights up . no starter . and no flicker .

    Leave a comment:


  • eccerr0r
    replied
    Re: Light bulb flicker when turning on after long time off.

    That remains to be ascertained but for sure the neon starter + mag ballast system will flicker before lights on as normal behavior ...

    ... and after using electronic/high frequency inverter ballasts, I hate the flickering. I have one of those linear T8 13W desk lamps that I threw out the old starter and magnetic ballast and replaced them with the guts of an "instant on" electronic ballast CFL whose heater burned out...

    Lights On Flicker Free Bliss.

    Leave a comment:


  • stj
    replied
    Re: Light bulb flicker when turning on after long time off.

    the one in the pic is 4pin so probably driven by a high frequency invertor

    Leave a comment:


  • eccerr0r
    replied
    Re: Light bulb flicker when turning on after long time off.

    Not sure if it's "new" versus "always like this" behavior?

    Those four pin fluorescent tubes all seem to do that for me if you have a traditional/old type auto starter coupled with a magnetic ballast. The two pin PL-13 has the old starter built in, and coupled with a magnetic ballast, and thus it behaves the same way.

    Replacing the starter with an electronic starter will help, though I'd swap the starter and the ballast to an electronic one, I hate those old starters lol...

    Leave a comment:


  • stj
    replied
    Re: Light bulb flicker when turning on after long time off.

    that is a PL type flourescent lamp, not halogen.
    so forget everything i said.

    for a flourescent lamp it could indicate the tube is getting old.
    but they always start a bit dim when they are cold anyway.

    one thing i found with those, if your using an adapter that goes into a regular lamp holder then they have a capacitor in them that will fail over time.
    but it's easy to clip them open and replace it.

    Leave a comment:


  • sew333
    replied
    Re: Light bulb flicker when turning on after long time off.

    Why it happens only after lights are off for long time?


    Bulb looking like that here:
    https://www.destinationlighting.com/...17150~zoom.jpg
    Last edited by sew333; 02-16-2021, 02:09 PM.

    Leave a comment:


  • stj
    replied
    Re: Light bulb flicker when turning on after long time off.

    if it really is halogen then you have a bad socket, switch or a problem with the wiring.
    maybe a terminal needs tightning.

    Leave a comment:


  • Light bulb flicker when turning on after long time off.

    Hello. I have question. I dont know if i have faulty wiring,bad installation or its bulb. When i have lights off long time and turn on lightning ( bulb halogen ) , there is a for 2-3 second bulb dimm/flicker and its normal. Happens only when lightning is off long time and i turn on.

    When i turn off lights and turn on again its fine. That flicker/dimm happens only when lights are off long time.
    That happens for example if i have lights off 2-3 hours and turn on.
    Thx
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