Benutzer:Rdiez/BuyingALightBulb - Versionsgeschichte

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Weiterleitung nach Benutzer:Rdiez/PageRemoved erstellt

Rdiez am 9. November 2014 um 21:12 Uhr

2014-11-09T21:12:04Z

Rdiez am 9. November 2014 um 21:10 Uhr

2014-11-09T21:10:06Z

Rdiez: Buying a light bulb used to be easy

2014-05-16T17:38:15Z

Buying a light bulb used to be easy

Rdiez: Buying a light bulb used to be easy

2014-05-16T17:33:32Z

Buying a light bulb used to be easy

Rdiez: Buying a Light Bulb used to be easy

2014-05-16T17:29:37Z

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 really easy, but that changed with the arrival of energy-saving models. 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:

{| {{prettytable}} class="wikitable"
|-
! title= |Incasdencent Watt
! title= |Lumen
! title= |LED Watt
! title= |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.

@@ Zeile 1: / Zeile 1: @@
-{{BenutzerSeitenNichtVeraendernWarnung|rdiez}}
+#REDIRECT [[Benutzer:Rdiez/PageRemoved]]
-−
-= 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. <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"
-|-
-! title= |Incasdencent Watt
-! title= |Lumen
-! title= |LED Watt
-! title= |Energy-saver Watt
-! title= |Halogen Watt
-! title= |Col temp
-|-
-| 40 W
-| 400 lm
-| 8 W
-|-
-−
-| 480 lm
-| 5 W
-|-
-| 60 W
-| 720 lm
-|-
-| 80 W
-| 1,000 lm
-| 20 W
-|-
-| 100 W
-| 1,200 lm
-|-
-| 150 W
-| 1,700 lm
-|-
-−
-| 1,900 lm
-| 23 W
-−
-−
-| 3200 K (too cold)
-|-
-−
-| 2,700 lm
-| 28 W
-−
-−
-| 3000 K (a little too cold)
-|-
-−
-| 2,800 lm
-| 30 W
-−
-−
-| 3000 K (a little too cold)
-|-
-−
-| 3,000-3,250 lm
-−
-−
-| 160 W
-| 2800-2900 K (warm)
-|-
-| 200 W
-| 10,000 lm
-|}
-−
-* 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 [http://en.wikipedia.org/wiki/Compact_fluorescent_lamp compact fluorescent lamp (CFL)] technology, especially after all the hype.
-−
-Its 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.
-−
-== LED lamp ==
-−
-LED lamps have a few drawbacks:
-* Expensive.
-* Weak. I just cannot find powerful LED lamps. The ones I see around are too weak for the living room.
-−
-They win in every other category.
-−
-== Halogen lamps ==
-−
-Advantages:
-* Cheap.
-* Fast to turn on.
-* Bright.
-−
-Drawbacks:
-* High electricity consumption compared to CFLs or LEDs.
-* They lose a lot of brightness with age (see 'cooking' below).
-* Dimmable, but you often get a hummy noise when dimmed from the power supply.
-* They get very hot, so:
-** They tend to turn darker (they 'cook') with time.
-** If you touch one during operation, you'll get burnt.
-** Careful when cold too. Fingertip oil may make them even hotter and damage them.
-* Some halogen bulbs shed a cold light (colour temp 3000 K or higher).
-−
-== Fluorescent tubes ==
-−
-Pros:
-* Cheap.
-* Powerful.
-* Consume little electricity.
-−
-Cons:
-* Big, long.
-* The starters break down often.
-* Cold colour.
-* Slow to turn on.
-* Poor cycling endurance.
-* Humming noise.
-* Not dimmable.
-* Brittle.

@@ Zeile 117: / Zeile 117: @@
 Drawbacks:
 * High electricity consumption compared to CFLs or LEDs.
 * Dimmable, but you often get a hummy noise when dimmed from the power supply.
 * They get very hot, so:
@@ Zeile 122: / Zeile 123: @@
 ** If you touch one during operation, you'll get burnt.
 ** Careful when cold too. Fingertip oil may make them even hotter and damage them.
-* Some halogen bulbs shed a cold light.
+* Some halogen bulbs shed a cold light (colour temp 3000 K or higher).
 == Fluorescent tubes ==

@@ Zeile 17: / Zeile 17: @@
 ! title= |LED Watt
 ! title= |Energy-saver Watt
 |-
-| 40
+| 40 W
-| 400
+| 400 lm
-| 8
+| 8 W
 |-
-| 60
-| 720
+| 480 lm
 |-
-| 80
+| 60 W
-| 1,000
+| 720 lm
-| 20
 |-
-| 100
+| 80 W
-| 1,200
+| 1,000 lm
 |-
-| 150
+| 100 W
-| 1,700
+| 1,200 lm
 |-
-| 200
+| 150 W
-| 10,000
+| 1,700 lm
 |}

@@ Zeile 53: / Zeile 53: @@
 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:
+Its many drawbacks are:
 * Expensive.
 * Slow to turn on.
@@ Zeile 65: / Zeile 65: @@
 On the bright side, they consume very little electricity.