XPost: alt.home.repair, uk.d-i-y   
   From: rod.speed.aaa@gmail.com   
      
   "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   news:op.zulmf92mo5piw3@desktop-ga2mpl8.lan...   
   > On Tue, 25 Dec 2018 21:00:53 -0000, Rod Speed    
   > wrote:   
   >   
   >>   
   >>   
   >> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   >> news:op.zulf8qz8o5piw3@desktop-ga2mpl8.lan...   
   >>> On Tue, 25 Dec 2018 18:33:27 -0000, Rod Speed    
   >>> wrote:   
   >>>   
   >>>>   
   >>>>   
   >>>> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in message   
   >>>> news:op.zulb102po5piw3@desktop-ga2mpl8.lan...   
   >>>>> On Tue, 25 Dec 2018 17:33:52 -0000, Rod Speed   
   >>>>>    
   >>>>> wrote:   
   >>>>>   
   >>>>>>   
   >>>>>>   
   >>>>>> "William Gothberg" <"William Gothberg"@internet.co.is> wrote in   
   >>>>>> message   
   >>>>>> news:op.zukr2cpgo5piw3@desktop-ga2mpl8.lan...   
   >>>>>>> On Thu, 20 Dec 2018 04:22:39 -0000, Clare Snyder   
   >>>>>>>    
   >>>>>>> wrote:   
   >>>>>>>   
   >>>>>>>> On Wed, 19 Dec 2018 19:36:51 -0000, "William Gothberg" <"William   
   >>>>>>>> Gothberg"@internet.co.is> wrote:   
   >>>>>>>>   
   >>>>>>>>> On Wed, 19 Dec 2018 17:47:17 -0000, trader_4   
   >>>>>>>>>    
   >>>>>>>>> wrote:   
   >>>>>>>>>   
   >>>>>>>>>> On Wednesday, December 19, 2018 at 11:35:06 AM UTC-5, William   
   >>>>>>>>>> Gothberg   
   >>>>>>>>>> wrote:   
   >>>>>>>>>>> On Wed, 19 Dec 2018 16:21:41 -0000, Mark Lloyd   
   >>>>>>>>>>>    
   >>>>>>>>>>> wrote:   
   >>>>>>>>>>>   
   >>>>>>>>>>> > On 12/19/18 6:01 AM, William Gothberg wrote:   
   >>>>>>>>>>> >   
   >>>>>>>>>>> > [snip]   
   >>>>>>>>>>> >   
   >>>>>>>>>>> >> They probably are fairly crude.  I know they flicker, for   
   >>>>>>>>>>> >> example   
   >>>>>>>>>>> >> if I   
   >>>>>>>>>>> >> use my cordless drill, the chuck appears to spin the wrong   
   >>>>>>>>>>> >> way   
   >>>>>>>>>>> >> under the   
   >>>>>>>>>>> >> LED lighting.   
   >>>>>>>>>>> > I remember seeing that with a washing machine (under   
   >>>>>>>>>>> > fluorescent   
   >>>>>>>>>>> > lights). As the tub was slowing down, the row of holes around   
   >>>>>>>>>>> > the   
   >>>>>>>>>>> > tub   
   >>>>>>>>>>> > would appear to reverse direction. Same thing with (spoked)   
   >>>>>>>>>>> > wagon   
   >>>>>>>>>>> > wheels   
   >>>>>>>>>>> > in movies.   
   >>>>>>>>>>>   
   >>>>>>>>>>> It looks absolutely ridiculous with modern cars with LED   
   >>>>>>>>>>> headlights   
   >>>>>>>>>>> in   
   >>>>>>>>>>> films.  How hard can it be to put a smoothing capacitor on the   
   >>>>>>>>>>> output   
   >>>>>>>>>>> of the power supply?   
   >>>>>>>>>>   
   >>>>>>>>>> I've never noticed that.  Any films come to mind?   
   >>>>>>>>>   
   >>>>>>>>> A lot of Top Gear programs showing the DRLs of cars fitted with   
   >>>>>>>>> LEDs.   
   >>>>>>>>> With a feature film, they might take the time/trouble/money to do   
   >>>>>>>>> something to stop it.   
   >>>>>>>>>   
   >>>>>>>>>> It seems especially   
   >>>>>>>>>> weird, since cars have a 12V supply with a big battery to smooth   
   >>>>>>>>>> anything out.  I guess the power supply that reduces that to   
   >>>>>>>>>> whatever   
   >>>>>>>>>> the LED headlights use though might have a switching power supply   
   >>>>>>>>>> these   
   >>>>>>>>>> days too.   
   >>>>>>>>>   
   >>>>>>>>> AFAIK it's deliberate, making the LEDs operate brighter than they   
   >>>>>>>>> are   
   >>>>>>>>> capable of, but only 1/4 of the time.  Our eyes just see the   
   >>>>>>>>> brightest   
   >>>>>>>>> part of the cycle, so we think they're four times brighter than   
   >>>>>>>>> the   
   >>>>>>>>> LED   
   >>>>>>>>> is really capable of, without overheating itself.   
   >>>>>>>>   
   >>>>>>>>  That is PWM Overdrive. Peak junction current is over the nominal   
   >>>>>>>> rating, but the average power consumption is below nominalmaximum   
   >>>>>>>> current - and the peak lumen output is significantly enhanced   
   >>>>>>>> without   
   >>>>>>>> reducing the junction life appreciably.   
   >>>>>>>>  THIS would definitely cause flicker as there is a "significant"   
   >>>>>>>> dead   
   >>>>>>>> period between the "strobe flashes"   
   >>>>>>   
   >>>>>>> Agreed, although Rod thinks only freaks can see it.   
   >>>>>>   
   >>>>>> Its true with car lights.   
   >>>>>   
   >>>>> You're obviously wrong,   
   >>>>   
   >>>> We'll see...   
   >>>>   
   >>>>> just by the number of articles on the internet about it.   
   >>>>   
   >>>> That's just the freaks howling about seeing it.   
   >>>   
   >>> If it were a small number of freaks, there wouldn't so many articles and   
   >>> studies into it.   
   >>   
   >> Bullshit.   
   >>   
   >>> It is a large percentage of the population that can see it.   
   >>   
   >> Easy to claim.   
   >>   
   >>> Way more than the percentage of vegetarians and disabled,   
   >>   
   >> Easy to claim.   
   >>   
   >>> yet they both get catered for.   
   >>   
   >> Because in the case of the disabled, it stops them getting   
   >> around. Being a freak that sees some car lights flicker doesn't.   
   >   
   > It causes distraction while driving.   
      
   Only to freaks. And even you should have noticed   
   that the regulatory authoritys have not proscribed   
   car lights that can be seen to flicker by freaks.   
      
   > Even a fuckwit like yourself should realise that's a bad thing for   
   > everyone.   
      
   Even a terminal fuckwit should have noticed that   
   the regulatory authoritys have not proscribed   
   car lights that can be seen to flicker by freaks.   
      
   >> In the case of vegetarians, pandering to them sees them   
   >> buy what you are flogging and avoids them going to   
   >> some other place that does pander to their freakishness.   
      
   > Please at least try to get your negatives right in sentences.   
      
   Nothing wrong the negatives in that sentence.   
      
   >>>>>>> I wonder why none of my houselights use this?   
   >>>>>>   
   >>>>>> Hues bulbs do, you can see that by waving something non   
   >>>>>> transparent past a bulb when looking directly at a lighted bulb.   
   >>>>>>   
   >>>>>> Your strip house lights have far more leds so don't need to.   
   >>>>>>   
   >>>>>>> Do car lights have to make more brightness from a smaller area?   
   >>>>>>   
   >>>>>> Corse they do.   
   >>>>>>   
   >>>>>>> Or would flickery houselights annoy people more?   
   >>>>>>   
   >>>>>> They don't with Hue bulbs.   
   >>>>>   
   >>>>> They don't annoy YOU.  They probably annoy others.   
   >>>>   
   >>>> You wont find anyone saying that they annoy them on the net.   
   >>>   
   >>> Depends just how flickery they are.  If the frequency is high enough,   
   >>> they won't bother anyone.   
   >>   
   >> I meant that you wont be able to find anyone saying   
   >> that the Hue bulbs annoy them by flickering on the   
   >> net. Philips must have designed them properly.   
   >   
   > With a higher frequency above what us superior beings can see.   
      
   What you freaks whine about, actually.   
      
   >>> Can you set something up to test the light output (or the voltage to the   
   >>> LEDs) with a scope?   
   >>   
   >> Not easily. The scope probes are hiding   
   >> and the scope is too, even tho its pretty big.   
   >   
   > You lost an entire oscilloscope?!   
      
   Not lost, just cant remember where it ended   
   up and can't be bothered looking for it.   
      
   >>>>>>> If it's the extra brightness, I don't understand   
   >>>>>>   
      
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