Help - Replacement Lightbulbs

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Dulouz

883 posts

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#208208 1-Feb-2017 09:33

I'd like to replace the lightbulb below with something similar i.e. light type and output. As far as I know this brand is no longer available. Please help! - the photo is not that clear. The output is daylight 6400k, 45w bulb.

Amanon

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#1713710 1-Feb-2017 09:36

Why do you want CFL? LED give you a better light, last longer, but do cost more still. Just get a good brand with a similar lumen output.

Dulouz

883 posts

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#1713713 1-Feb-2017 09:38

CFL/Led don't mind. I just like the white light and the output these bulbs have provided.

Amanon

PaulBags

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#1713724 1-Feb-2017 09:55

45w or 45w equiv.?

Dulouz

883 posts

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#1713726 1-Feb-2017 09:58

I'm not fussy about the w more about the light output. Ideally 6000k+ which throws out as much light as possible from a fairly deep recessed socket. The great thing about the CFL above is that they are relatively long so they hung out of the socket and distributed their light into the room.

Amanon

robjg63

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#1713733 1-Feb-2017 10:05

So the 6400K is "Cool daylight" - So quite white/blue as opposed to the softer yellower shades.

If you look on Mitre10s website they have a few CFL bulbs (the spiral CFLs) at 6500K.

That should be pretty similar.

Just do a query on "Cool daylight" - they have some quite high powered LEDs as well at around 6200K

If its a replacement to a group of bulbs it could look a bit different - even if you got an exact replacement for your bulb it could look a bit different anyway and CFLs tend to change as they age.

EDIT: Just re-read your post about the long CFL sticking out of the recessed downlight. Yes - downlights are horrible like that. If the bulb sits a bit outside the fitting it illuminates the ceiling - but they do look a bit ugly. If you have a shorter bulb you have to throw some more watts/lumes to try and conteract the problem.

Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

timmmay

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#1713749 1-Feb-2017 10:17

Take the box to a hardware store and buy a light that is similar in lumens and color temperature. No thread required.

Dulouz

883 posts

Ultimate Geek

#1713766 1-Feb-2017 10:27

timmmay:

No thread required.

There is a thread required. It's an Edison fitting, not a bayonet

Amanon

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richms

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#1713769 1-Feb-2017 10:34

They have all disappeared. I got some nice 65 and 105w not very compact fluros for the workspace years ago, wanted some more to match and could only find them on aliexpress. Ordered 4 more and they arrived and worked fine, but looking now they are all gone from there.

Richard rich.ms

Dulouz

883 posts

Ultimate Geek

#1713771 1-Feb-2017 10:36

richms:

They have all disappeared. I got some nice 65 and 105w not very compact fluros for the workspace years ago, wanted some more to match and could only find them on aliexpress. Ordered 4 more and they arrived and worked fine, but looking now they are all gone from there.

I use mine for my workspace as well. I'm not the type of man to rave about lightbulbs but they really are amazing.

Amanon

andrewNZ

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#1713953 1-Feb-2017 15:20

I'm pretty sure I've seen some industrial flood lights that take those lamps. It'd be worth your time checking electrical wholesalers.

Alternatively you might consider replacing the downlights. Modern LED ones have a MUCH better spread of light. The last one I tested left around 100mm shadow at the top of the wall about 2m away.

mattwnz

20141 posts

Uber Geek

#1713981 1-Feb-2017 15:30

How many lumins are they? 45watt CFL must be producing close to 1500 lumins and I don't think there are too many E27 LED bulbs that are that powerful yet. They are a very cold light, so you may need to go to something industrial. Replacing the fittings with an all in one fitting/bulb is another option, but you will probably need some spares, because when one fails prematurely, they may have stopped making them. I have learnt this from previous experiences.

ubergeeknz

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Vocus

#1713985 1-Feb-2017 15:33

The Philips 18W LED should be getting close, 2000 Lumens at 6500K (Looking online a 45w CFL is about 2800 lumens) https://www.mitre10.co.nz/shop/philips-a67-led-light-bulb-18-watt-cool-daylight/p/274224 maybe worth a go. Not cheap but you might pick one up on special.

djtOtago

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#1713997 1-Feb-2017 15:46

Dulouz:

I'm not fussy about the w more about the light output. Ideally 6000k+ which throws out as much light as possible from a fairly deep recessed socket. The great thing about the CFL above is that they are relatively long so they hung out of the socket and distributed their light into the room.

6400k = The colour of the light not how bright it is. ~6400k colour is often called Cool daylight.

Lumens is the measure of how much light (brightness) it gives off. It should be written on the box somewhere. If the bulb is quite old its lumen rating may not be shown.

A 45W CFL is typically about 2500+ Lumens

So you just need to find a bulb that is approximately 6400k in colour output , 2500 Lumens in light output, has an Edison screw base and is the right shape to fit your recessed fitting.

In old school technology (Incandescent bulb) you would be looking for something around the 150W. I doubt you will find an affordable LED bulb with 2500 Lumen output that will fit a deep recess fitting.

richms

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#1714070 1-Feb-2017 16:41

Dont get a "36w" LED off aliexpress and think it will be a replacement. Barely 20w draw and the worst colour I have ever seen short of a cheap LED 12v worklight for a truck or similar. Almost a combination of purple and pink tones to it. Sure, it _looks_ white-ish, but anything under it is grey.

Richard rich.ms

mattwnz

20141 posts

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#1714078 1-Feb-2017 17:01

djtOtago:

Dulouz:

I'm not fussy about the w more about the light output. Ideally 6000k+ which throws out as much light as possible from a fairly deep recessed socket. The great thing about the CFL above is that they are relatively long so they hung out of the socket and distributed their light into the room.

6400k = The colour of the light not how bright it is. ~6400k colour is often called Cool daylight.

Lumens is the measure of how much light (brightness) it gives off. It should be written on the box somewhere. If the bulb is quite old its lumen rating may not be shown.

A 45W CFL is typically about 2500+ Lumens

So you just need to find a bulb that is approximately 6400k in colour output , 2500 Lumens in light output, has an Edison screw base and is the right shape to fit your recessed fitting.

In old school technology (Incandescent bulb) you would be looking for something around the 150W. I doubt you will find an affordable LED bulb with 2500 Lumen output that will fit a deep recess fitting.

Also they may burn out quicker, as LEDS like a lot of air around them as the base/heat sink gets hot. They shouldn't be enclosed, and there is usually a warning on the bulb. The other option is using some some form of extension or a E27 to B22 convertor (if it exists) to push the bulb out of the fitting a bit more, although probably easier just to replace teh fittings. I personally find 3000k to the the perfect colour temp. 2700k is too yellow, and I find anything higher with LEDs is a very cold colour and changes the colour of things. eg Reds can appear dark/black etc.

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