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(15-03-2023, 06:44 AM)Cmpunk Wrote: How to differentiate good LED and lousy LED?
Buy Phillips. Although the led light itself lasts 10yrs easily no matter what brand even cheapo brands, the driver components can fail.
If you buy cheap one from online, the driver can fail after 1-2yrs
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I am transitting to LED too
so far its good
just not sure about those in Bathroom because of super high humidity
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As for the "damaging effects" of Led on body, it does not come from lighting but Handphones and computers.
Led has blue light emitted when your handphine display is white. This blue light mess up your brain sleep wake cycle. You can buy a screen to filter or turn on night mode.
For lighting to play safe us yellowish light not pur white. However, due to the distance vs a handphone put so near your eyes, the effects are negligible anyway .
Other negative effects likely nonsense fabricated. florescent bulb when they came out to replace incandescent bulbs also have many negative fabrications. Every new technology always have some people come out to fabricate nonsense
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(This post was last modified: 15-03-2023, 07:11 AM by
sgbuffett.)
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Led lights can last for your very long if spoil you can easily repair using pencil or alum foil.
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Most of the public lights are changing to LED. Good quality, more expensive, LED can lasts more than 20 years.
More Led chips allow for more power.
It can be in different colours. Generally, the colours can be warm light, white light and red light.
The input power is important and there is a need to match the power delivery from the respective wire.
Nowadays most of the bicycles are attached with LED lights for night use. I used a torch light with different LED lights recently. Has been around for more than 20 years.
(This post was last modified: 15-03-2023, 08:00 AM by
theold.)
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(14-03-2023, 09:16 PM)sgbuffett Wrote: ![[Image: OFu01NV.jpg]](https://i.imgur.com/OFu01NV.jpg)
Left one is non LED $3.50 13W Compact flourescent (CFL)
Right one is LED $7.90 9W (equivalent 18W)
The lifespans of LED is 10 times CFL.
The price is 2.3X
LED is 50% more energy efficient.
I just don't see any case to buy CFL....CFL should disappear from the market completely...but strangely shops are still selling more CFL than LED judging from the number of CFL bulbs on the shelf is double that of LED.
There is a cheap converter for the base to change to circular turning type.
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The most vulnerable component of a led light is the driver, and the cost of it is almost the same as the light. The other problem is the tiny lights are serially connected, so if any one of them spoilt, the entire light won't light up
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terraforming u is not a one day event.
take for long convit
people take it as the disease is real and they suffer
like poisoning and other terraforming events
(This post was last modified: 15-03-2023, 08:29 AM by
singlon.)
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(15-03-2023, 07:22 AM)sgbuffett Wrote: Led lights can last for your very long if spoil you can easily repair using pencil or alum foil.
Not recommended. The aluminum will only short the circuit of the broken LED and the rest of the LED will have an increase in operating voltage that will eventually burn them out or shorten their life. Better to replace the broken LED element with another one or with another resistor.
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(15-03-2023, 07:42 AM)theold Wrote: Most of the public lights are changing to LED. Good quality, more expensive, LED can lasts more than 20 years.
More Led chips allow for more power.
It can be in different colours. Generally, the colours can be warm light, white light and red light.
The input power is important and there is a need to match the power delivery from the respective wire.
Nowadays most of the bicycles are attached with LED lights for night use. I used a torch light with different LED lights recently. Has been around for more than 20 years.
LED lights may last 10 years or so, but the 'igniter ' may not last as long...............and has to be changed more frequently............
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If they make lights that can last a lifetime, they will soon file for bankruptcy.
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