Benutzer:Rdiez/BuyingALightBulb: Unterschied zwischen den Versionen
Aus /dev/tal
Rdiez (Diskussion | Beiträge) (Buying a Light Bulb used to be easy) |
Rdiez (Diskussion | Beiträge) (Buying a light bulb used to be easy) |
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= Buying a light bulb used to be easy = | = Buying a light bulb used to be easy = | ||
| − | Buying a light bulb used to be really easy, but that changed with the arrival of energy-saving models. Here is a feature list: | + | Buying a light bulb used to be really easy, but that changed with the arrival of energy-saving models. |
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| + | It is very hard to buy a quality light bulb. I have often bought from "good" brand names and got disappointed. | ||
| + | |||
| + | Here is a feature list: | ||
* Brightness. <br/> Unfortunately, the lumen values are not linear, especially from 2,000 [http://en.wikipedia.org/wiki/Lumen_%28unit%29 Lumen]. I don't know the maths. If you can help, please [[Benutzer:rdiez|drop me a line]]. This is the table I have been using for reference: | * Brightness. <br/> Unfortunately, the lumen values are not linear, especially from 2,000 [http://en.wikipedia.org/wiki/Lumen_%28unit%29 Lumen]. I don't know the maths. If you can help, please [[Benutzer:rdiez|drop me a line]]. This is the table I have been using for reference: | ||
| − | {| {{prettytable}} class="wikitable" | + | :{| {{prettytable}} class="wikitable" |
|- | |- | ||
! title= |Incasdencent Watt | ! title= |Incasdencent Watt | ||
| Zeile 44: | Zeile 48: | ||
* Physical robustness. | * Physical robustness. | ||
* Operating temperature. | * Operating temperature. | ||
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| + | == Compact fluorescent lamp (CFL) == | ||
| + | |||
| + | I am particulary dissatisfied with [http://en.wikipedia.org/wiki/Compact_fluorescent_lamp compact fluorescent lamp (CFL)] technology, especially after all the hype. | ||
| + | |||
| + | The many drawbacks are: | ||
| + | * Expensive. | ||
| + | * Slow to turn on. | ||
| + | * Often last much shorter als advertised, due to low cycling endurance. | ||
| + | * Noisy. Most CFLs make a humming noise that you may notice in a quiet environment. | ||
| + | * Cold light colour. | ||
| + | * Normally not dimmable. | ||
| + | * The light bulb itself is also ugly. | ||
| + | * Contain toxic mercury (quicksilver) which complicates their disposal. | ||
| + | * They turn darker with time. | ||
| + | |||
| + | On the bright side, they consume very little electricity. | ||
Version vom 16. Mai 2014, 19:33 Uhr
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Buying a light bulb used to be easy
Buying a light bulb used to be really easy, but that changed with the arrival of energy-saving models.
It is very hard to buy a quality light bulb. I have often bought from "good" brand names and got disappointed.
Here is a feature list:
- Brightness.
Unfortunately, the lumen values are not linear, especially from 2,000 Lumen. I don't know the maths. If you can help, please drop me a line. This is the table I have been using for reference:
Incasdencent Watt Lumen LED Watt Energy-saver Watt 40 400 8 60 720 80 1,000 20 100 1,200 150 1,700 200 10,000
- Color temperature. 2700K is best. 3000K might be described as "soft, warm white", but you'll notice the difference.
- Turn-on speed.
- Lifespan.
- Cycling endurance.
- Clear or frosted glass.
- Noise.
- Dimmable.
- Physical robustness.
- Operating temperature.
Compact fluorescent lamp (CFL)
I am particulary dissatisfied with compact fluorescent lamp (CFL) technology, especially after all the hype.
The many drawbacks are:
- Expensive.
- Slow to turn on.
- Often last much shorter als advertised, due to low cycling endurance.
- Noisy. Most CFLs make a humming noise that you may notice in a quiet environment.
- Cold light colour.
- Normally not dimmable.
- The light bulb itself is also ugly.
- Contain toxic mercury (quicksilver) which complicates their disposal.
- They turn darker with time.
On the bright side, they consume very little electricity.
