Dimmable LED electronics

Dec 07, 2020 Last reply: 5 years ago 5 Replies

I need to buy one BA15D to replace a burned out Halogen 120V 75W garage stair light that is attached to the side wall.



It doesn't need to be brightly lit as it's a short set of open steps and it's not on a dimmer so I don't care about the wattage all that much.



But I was told by someone dimmable LEDs are more robust than non dimmable LEDs.



Amazon has three kinds of 12V BA15D LEDs with respect to dimmability [1] some don't say if they are dimmable

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some say they're not dimmable
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some say they are dimmable
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What makes an LED dimmable anyway? Is it just advertising hype? Or does the electronics have something special I can actually see inside?


Try sci.electronics.design if no one here has an answer.

All LEDs are long lasting. Decades, I think**. I wouldn't base my choice on that. If you have no dimmer, you can use any one of the 3 below except are you sure your socket is bayonet style, and that there are two contacts in the bottom of the socket? Like sewing machines use? All 3 of them are recommended for sewing machines, that have bayonet, insert and twist, mounts.

**Most of mine are on only a fraction of the time. Do they ever wear out? "Unless an actual component in the LED fails, they will provide light ?forever.? While LEDs do not burn out like fluorescent lamps and other bulbs they will, however, degrade and dim over time. The diode itself will begin to emit less and less light as the years pass. Still, LED lamps can last over 25,000 hours."

That's 3 years 24 hours a day. And if it dims, you said you don't need much light.

None of these are listed as 12V. But if they were they wouldn't owk in your fixture.

Also note that all are different wattages, so they are different bulbs and maybe different in dimmabiliity.

You know you can ask questions on the Amazon Q&A section. You can ask if it's really dimmable.

For this one, the first review said it was 12V but was mislabeled, and that it blew up when he tried it in a sewing machine, that it was meant for a car. But in the ad, it's still labeled as 110V and it's rated 4.4 out of 5. I didn't take the time to read other reviews, but I have once seen a review that was about a totally different product than what it referred to. Maybe there is a mistake somewhere, or they sent him the wrong thing (Heck, I bought a refurb computer online and they sent me the wrong model.

I doubt it. Just guessing.

YOu mean if you break it open? Even simple things have gotten amazingly complicated inside, IC's for example. Even if you broke open a dimmable and an non-d, I don't know if you can tell what's there to make the leds work and what's there to make something dimmable.

or sci.electonics.repair

The electronics is definitely more complex - and behaves MUCH differently

Thanks, Scott. That's yet another brand I haven't heard of, but new technology tends to bring new players. I appreciate it.

I'm only using 2 LED bulbs, shaped like regular light bulbs.

They are very bright.

One is in a lamp I keep knocking over, and it doesn't break. Doesn't seem like it might. They seem more rugged than the traditional glass lightbulb.

The other is on the ceiling above my head. I'll get the brand if anyone cares.

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