Household LED bulbs

It appears there are several different wiring types for LED lightbulbs, here is a great article I found describing the differences, with schematic & block diagrams covering the various circuits employed;

https://www.powerelectronictips.com/teardown-60-w-equivalent-led-bulbs/

(bear in mind the article is from 2015, almost 10 years ago, and my bet would be that in those 10 years, the manufacturers have migrated to the simpler circuit schemes)
 
spicer said:
Totally enclosed... totally... that's a rare bird.
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I don`t think my B-I-L`s globe fixtures have a gasket where the globe is thumb screwed to the fixture`s housing, so there is probably around maybe 1/16" or so gap between the fixture`s collar and the mildly rolled lip of the globe .
The fixture`s normally hanging down securing collar hangs over lapping over the globe`s openings lip, or rain would find its way into the globe and fill it up with water, certainly obviously causing fixture electrical issues, so with that in mind, I`m pretty certain that he didn`t physically invert these outdoor globe lighting fixtures, as he is blessed with a very good dose of situational awareness in all manner of things.
 
init4fun said:
My Friends, , , it pays to do a bit of reading & comparison shopping in the bulb aisle......
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Aisle, maybe? Greater variety of choices on-line.
Just don't always make your decision based on lowest price. Our new home has some 60 in-ceiling cans with PAR LEDs. In over 5-years we've had a few fail, but the cost of operation and the quality of the light makes the decision to up the quality of the bulbs made by our electrician all seem worthwhile.
 
BMWCCA said:
Aisle, maybe? Greater variety of choices on-line.
Just don't always make your decision based on lowest price. Our new home has some 60 in-ceiling cans with PAR LEDs. In over 5-years we've had a few fail, but the cost of operation and the quality of the light makes the decision to up the quality of the bulbs made by our electrician all seem worthwhile.
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Missing "A" now present & accounted for...... ;)
 
i've grown so tired of replacing new led bulbs after less than a year, that i've begun to drill small holes on the plastic, near where it screws in and for ventilation. since they get extremely hot, it's a certainty that the heat is killing the power supplies and associated parts. just started doing this, so, not sure if they'll last a bit longer or not.
 
raycarr00 said:
i've grown so tired of replacing new led bulbs after less than a year, that i've begun to drill small holes on the plastic, near where it screws in and for ventilation. since they get extremely hot, it's a certainty that the heat is killing the power supplies and associated parts. just started doing this, so, not sure if they'll last a bit longer or not.
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Not so sure I'd go drilling holes in them, but I have found that the cheap ones with the plastic "diaper" on the bottom do seem to run hotter than the ones in my pic in post #24, so I only buy the ones that say "suitable for use in enclosed fixtures" that have the entire bulb made of glass. I have had very, very few failures of that type of LED bulb :thumbsup:
 
i now just pick them up at the habitat for humanity stores new or not. along with 100w incandescent bulbs. they're about five for a buck. i'll keep an eye out for glass led for enclosed fixtures and see if they last over a year.

this is what a reddit member said " bulbs can be 'hacked' to reduce the amount of current supplied to the leds from the driver inside, it can significantly increase their lifetime by the cost of slightly reduced light output. If this can be called a hack.. more like a 'fix' cuz 99% of the led bulbs are intentionally overdriven from the factory to cut the costs - to get more light from the less amount of leds, and make them die faster."
 
For whatever reason, I`m able to get well over 12 yrs. of life of some of my house`s LED bulbs ( the floor lamp behind my living room`s couch LED bulb is the original one put in at least 13 yrs. ago and it remains turned on 24/7/365 with the occasional turning it off for a few hrs. to run the living room`s projector in the evening after dinner.

LED/CFLs internal cheap ass SMPS don`t tend to like power line surges/spikes, if their operating during strong power line blip events from my experience of totally LED re-lamping (with the exception of the oven and my 2 combo microwave/convection counter top cooking appliances) my house starting ~ 15 yrs. ago, IMO/E.

The slightly higher priced Philips/Cree brands seem to have been giving the longest LED bulb life for me.
All 4 of my living room`s recessed can ceiling mounted Philp`s brand LED bulb installation from 15 yrs. ago are the original indoor flood light ones I installed with many, many hundreds of operating hrs. on them.
 
Amazing! I'm lucky if I get a year. This is what CNET says ”The Cree 60W Replacement LED puts out 800 lumens using 9.5 watts, giving it a very impressive efficiency rating of 84.21 lumens per watt. That's better than any other 60W replacement bulb that we've tested." I'll try 'em once habitat runs out. But I suspect that the 124.5vac mains is killing them, as they get really hot.
 
Bill Ferris said:
For whatever reason, I`m able to get well over 12 yrs. of life of some of my house`s LED bulbs ( the floor lamp behind my living room`s couch LED bulb is the original one put in at least 13 yrs. ago and it remains turned on 24/7/365 with the occasional turning it off for a few hrs. to run the living room`s projector in the evening after dinner.

LED/CFLs internal cheap ass SMPS don`t tend to like power line surges/spikes, if their operating during strong power line blip events from my experience of totally LED re-lamping (with the exception of the oven and my 2 combo microwave/convection counter top cooking appliances) my house starting ~ 15 yrs. ago, IMO/E.

The slightly higher priced Philips/Cree brands seem to have been giving the longest LED bulb life for me.
All 4 of my living room`s recessed can ceiling mounted Philp`s brand LED bulb installation from 15 yrs. ago are the original indoor flood light ones I installed with many, many hundreds of operating hrs. on them.
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The ones I leave on all the time last a long time. The ones that get switched on and off is where the failure rate is noticed.
 
I stocked up on incandescent bulbs before they were basically being phased out. Got enough to probably last the rest of my life.
 
ever notice some of them just don't seem to be as bright as the lumen number implies they should be? I replaced some 75w incandescent with 100w equivalent LED and the room is darker. Found some that claim a much higher lumen number than those LED and will install those when I have a chance. These new ones claim to be 300 watt equivalent.
 
gadget73 said:
ever notice some of them just don't seem to be as bright as the lumen number implies they should be? I replaced some 75w incandescent with 100w equivalent LED and the room is darker. Found some that claim a much higher lumen number than those LED and will install those when I have a chance. These new ones claim to be 300 watt equivalent.
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Yeah, I noticed that typical lower lumen output early on when LED re-lamping my house, and just bought higher wattage higher lumen output brighter LED bulbs, or in a select application just used a dual bulb Y adaptor, like over my ceiling hanging stained glass over the kitchen table lamp fixture.

Even doing so still reduced the electrical consumption and radiant heat over the house`s various original incandescent bulbs.

Over all I`m quite satisfied with my conversion to LED lighting for starting over the past 15 yrs, especially while my house`s windows are hurricane panel boarded up and is blacked out pitch black requiring more house lights turned on than otherwise during the outage and my house is being powered by my backup genset during warm weather multiday sustained power outages, like hurricane caused that my HVAC heat pump needs to be running.
My only complaint is the LED bulbs back feeding noise on to my house`s wiring that while not getting into my power filtered A/V equipment does sometimes interfere with my house`s X-10 timer power line communication controlled fixtures that force me to manually engage them when they occasionally fail to turn on via the X-10 timer.
 
I stuck in two of those bulbs last night and they definitely work better. Have to do the other 4 but since the job involves multiple trips up a ladder per-bulb I decided to put it off.

Original 1924 light fixtures, basically "schoolhouse globe" type things, and they are about 10 feet up in the air. Up the 8 foot ladder, remove the globe. Down the ladder, put the globe on the floor. Up the ladder, swap the bulb. Down the ladder, pick up the globe, back up the ladder to install it.

I'll have help next time to do this, having someone hand me things so I don't have to make full trips will make it go a lot faster. The last time I did this it took even longer because I was cleaning the globes and had to make some repairs to the fixtures.

I found the wood trim rings that originally sat on top of the globes stashed in a closet, so I'm putting those back on too.
 
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