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There's something off about LED bulbs

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121–130 of 966 posts

Re: There's something off about LED bulbs

#121

As we continue to shift our primary motivation for creating products away from what is best for the consumer towards what is best for an artificially determined goal we will increasingly see the compounding secondary effects of those choices.

The "artificially determined goal" here is not roasting ourselves alive in 50 years, which I for one think is a better goal than "satisfying consumer preferences."

Re: There's something off about LED bulbs

#122
post #5

I have heard that newer LED Bulbs now have some kind of built in obsolescence. This is from someone I know who is an engineer working for the US military. I told him I had bought some LEDs (started moving over 2 years ago) and that is when he mentioned that. I guess I will find out, so far so good. I did stock up on 100 watt incandescent years ago and have a many left just in case. I found LEDs cause me eye strain, b…

Traditional incandescent bulbs were not immune to planned obsolescence, see https://en.wikipedia.org/wiki/Phoebus_cartel

“The cartel lowered operational costs and worked to standardize the life expectancy of light bulbs at 1,000 hours (down from 2,500 hours)..”

Re: There's something off about LED bulbs

#123

Cheap LED bulbs generate the worst light I’ve ever experienced. But after some research I found that there are options that make a nice warm light with no perceptible flickering. Personally I prefer the phillips warm glow dimmable bulbs

Have you had any lifetime issues with these? I bought a dozen and a significant number started emitting warm color while at full brightness instead of just dimmed.

Re: There's something off about LED bulbs

#124

I have begun to use grow lights everywhere as regular lights. They emit a pleasant looking spectrum, have good heat sinks for longevity, have high-quality ballasts, built-in dimmers and do not flicker. They also blow out any alternative out of the water when it comes to pure brightness for precision work (soldering, painting minis, etc.) They are also fairly cheap (can find some lights as low as 50c/watt on sale) Oh…

Don't many grow lamps emit UV? I would be slightly concerned about potential eye and skin damage over time.

Re: There's something off about LED bulbs

#125
post #84
post #79

Earlier quoted context omitted.

What if you don't want to become an expert, which is something that wouldn't scale for every piece of tech and equipment? (Maybe you enjoy tweaking with lights, but what about chairs, tabletop materials, woods, wall paints, and yes -- electronic gadgets?). With LEDs, what's the "I don't want to deal with this, I just want something that will work as intended and not introduce weird artifacts"?

>With LEDs, what's the "I don't want to deal with this, I just want something that will work as intended and not introduce weird artifacts"? That sounds like an ideal situation the free market should be fixing -- so why isn't it?

I think it does? I go into a home improvement store, grab a dimmable bulb on the warmer side, and screw it in. That's pretty much the sum total of my dealing with LED bulbs.

Re: There's something off about LED bulbs

#126

I have begun to use grow lights everywhere as regular lights. They emit a pleasant looking spectrum, have good heat sinks for longevity, have high-quality ballasts, built-in dimmers and do not flicker. They also blow out any alternative out of the water when it comes to pure brightness for precision work (soldering, painting minis, etc.) They are also fairly cheap (can find some lights as low as 50c/watt on sale) Oh…

Don't many grow lamps emit UV? I would be slightly concerned about potential eye and skin damage over time.

So does the Sun.

Also, you never look at the light directly.

Re: There's something off about LED bulbs

#127

Earlier quoted context omitted.

> LED emitters driven hard for cost reasons > Power supplies driven hard for cost reasons Can you elaborate? What does "hard" mean here, I don't understand.

At the limits of their ratings. They could make LED bulbs last many orders of magnitude longer and be more efficient, but they don't (unless forced to[1]) because they prefer planned obsolescence. [1] https://news.ycombinator.com/item?id=27093793

More recently Philips has started selling the Dubai-style bulbs worldwide, branded as the "Ultra Efficient" range. They're expensive though, as you'd expect.

Re: There's something off about LED bulbs

#128

We wire our homes with a whole bunch of AC circuits. These are basically busses, right? Why not add more kinds of busses? Why not a DC bus? Every light in my home is an LED, and most appliances (by count) are DC. I understand that moving DC long distances can be problematic. But is 100-300 feet too long? Am I completely off on this? This feels like a legacy inefficiency issue.

DC actually tends to be more efficient at long distances at the same voltage. DC lighting does exist in the commercial space where lighting costs actually start to add up more than household use. The main barrier to DC systems in homes is simply that it would require houses to be rewired and a whole new standard for plugs and such. The benefit is also hard to describe to the customer.

Re: There's something off about LED bulbs

#129
post #6

The irony of this article is that the author is suffering from “too much choice”. LEDs have so much more capability than fluorescent and halogen bulbs that the burden has fallen on the consumer to sort out what dimmability, temperature, and lumens they need. It used to be that you only had one option so you didn’t have to think about it. Anyone who works in stage lighting or art knows that light is complicated. We sh…

It used to be that you only had one option so you didn’t have to think about it. But, that single option was at least "good enough". I never bought a normal incandescent bulb only to have the color rendering/brightness/etc be downright awful. LEDs come packaged as "daylight" or "bright white" or whatever else. I want one that's labelled "just like your normal 60W incandescent".

I've found the color/brightness of the GE Relax HD (Yeah, they go one step further and label the color temperature as "Relax HD") to be pretty good. Lifespan has been hit and miss in semi-enclosed fixtures though.
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