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 Post subject: Bulb query
PostPosted: Mon Oct 01, 2018 1:18 pm 
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Is it ok to use "old style" incandescent bulbs (which I much prefer) in modern light fittings where halogen is specified ?
I have bought a NEXT light shade and it specifies Max 42w halogen - can I use an incandescent bulb and, if so, what max wattage ?
Does 42w halogen equate to 42w incandescent ?
Thank you.


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 2:39 pm 
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The maximum wattage rule applies no matter what form of light you put in. Do not exceed it.

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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 2:40 pm 
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42W halogen is 60W incandescent. If to go by the letter then bulb shouldn't be greater than 42W.

I would go for LED bulbs, 8-10W equates to 42W halogen and you can fit higher LED wattage bulbs and also save on bills. But make sure of the actual physical size of the bulb. Important point: If you have dimmer switch then LEDs won't work and need to change to LED dimmer.


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 2:52 pm 
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Thanks for the replies. A 7w (not 8 -10w) LED is also recommended.

Basically I detest the modern bulbs as they are just so dim and dismal and am looking for the absolute brightest bulb I can safely use in this fitting.

Which are generally brighter LED or Halogen ?

Interested in brightness not saving money !!


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 3:14 pm 
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rautospoon wrote:
Thanks for the replies. A 7w (not 8 -10w) LED is also recommended.

Basically I detest the modern bulbs as they are just so dim and dismal and am looking for the absolute brightest bulb I can safely use in this fitting.

Which are generally brighter LED or Halogen ?

Interested in brightness not saving money !!


LEDs are measured by Lumens (brightness) not Watts. The watt conversion is a crude inaccurate calculation, there is no equation or formula to covert incandescent watts to LED watts.
42W halogen is minimum 8W LED but preferably 9 or 10W.


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 3:40 pm 
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a 12w will light it up like a spotlight :lol:
https://www.toolstation.com/shop/p54833

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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 3:42 pm 
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Thanks for that. Which would be brightest a 10w LED or a 42w halogen ?


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 3:48 pm 
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big-all wrote:
a 12w will light it up like a spotlight :lol:
https://www.toolstation.com/shop/p54833


Thanks but is 12w (70w equivalent) not to "big" for my situation as a previous "poster" stated "The maximum wattage rule applies no matter what form of light you put in. Do not exceed it" ?

Now somewhat confused - it used to be all so simple with just 40w, 60w and 100w !


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 3:54 pm 
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yes its current used that causes the heat [watts]

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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 4:20 pm 
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rautospoon wrote:
Thanks for that. Which would be brightest a 10w LED or a 42w halogen ?


10W, go higher if you want brightness.

If it spot lights and 3 or 4 of them then 8-10 W each will be excellent. If it is one ceiling bulb then go for at least 12W -15W.

42W max is the actual bulb wattage and not the equivalent. Ie: 42W halogen, 42W incandescent or 42W led.
(ps. 42W led will be extremely bright and probably don't exist)


Last edited by yartin on Mon Oct 01, 2018 4:47 pm, edited 1 time in total.

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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 4:28 pm 
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Another thing to note for LEDs is the beam angle, should be 120 degrees plus. Some are 50 degrees or so which is only good to highlight a picture hanged on a wall.


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 4:49 pm 
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Thanks but still confused - probably me being thick !

Why does the box (it is a ceiling fitting) recommend only a 7w LED rather than the 12W -15W you suggest ?


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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 5:17 pm 
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its to give the light output they recommend
you want more

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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 5:26 pm 
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rautospoon wrote:
Thanks but still confused - probably me being thick !

Why does the box (it is a ceiling fitting) recommend only a 7w LED rather than the 12W -15W you suggest ?


No idea why recommend 7w led, it will provide poor insufficient brightness for a ceiling light. You should be able to contact the manufacturer by phone or email and ask them, I am sure they will advise you can use 12-15W LED.



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 Post subject: Re: Bulb query
PostPosted: Mon Oct 01, 2018 5:58 pm 
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7w (technically 7.4w) is equivalent to 60W

imho you don't want a cool or cold white led bulb, a good quality bulb from Phillips or Osram in warm white with a clear cover rather then a opal

what fitting does it use ?



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