Now almost 10 years old, our lighting in the main living room is dimmable
100W halogen bulbs.One bulb has blown, and I am wondering if I can start rolling out LED equivalents.
However initial searching seems to top out at 60W equivalent (about 700 lumens).
I am still searching, but are high wattage LED dimmable bulbs easily available?
Cheers
Dave R
Actually, no mention of dimmable on that one, but if you've searched and not found, you do need some google lessons ...
There are some 13W LED ones that claim 1500 lumens and 100W equivalent. E.g:
David was thinking very hard :
I have just been through this and yes, it can be done. I had two walllight, 40w tungton lamps, operated on one 30 year old dimmer switch. Whey were swapped for 2 2.5w LED's which proven too dim, as you would expect, but fine for TV viewing.
To solve that, after a few years of struggling with not enough light, I ordered up two Lumilife 8.8w dimmable BC LED's. I then found swapping both they didn't work, one 2.5w + one 8.8w limped along with the old dimmer, so yesterday I bought two 273CC x 2 LAP 1-Gang 2-Way LED Dimmer Switch White £16.10 (£8.05 each) = They worked perfectly with the two 8.8w LED's. It seems that some LED's needs positive, or negative dimming, that dimmer auto selects which it should use.
Just be aware, even if you can find a dimmable 100W equivalent, the quality of the light when dimmed may be ghastly.
Tungsten bulbs produce a light that gets ?warmer?/yellower as they dim. LEDs normally don?t. In fact they look colder as they dim. The effect is sufficiently horrid that I don?t try to dim any of my LEDs, I just try to get the right brightness and colour temperature at purchase time.
Tim
I have a couple of ikea zigbee bulbs, you can smoothly vary the colour temperature, as well as the brightness.
Thanks. That looks a good option.
My search strings are obviously not using the correct key words and the usual suspects such as Screwfix don't seem to stock them .
I note that 100W halogen bulbs seem to be scarce or unobtainable. At least, not at Screwfix and Toolsatan.
Fortunately I have located an old 100W tungsten light which is now in my single socket, and the halogen from there is in the triple socket replacing the failed bulb.
I did got looking in the shed for my ancient stock of tungsten filament bulbs but I can't find them. It would be typical if I had slung them as no use to anyone just before I needed one!
Cheers
Dave R
"banned" from this september, excluding existing stocks
Tim+ snipped-for-privacy@gmail.com wrote
I find the reverse, hate the yellow leds even tho I did use 200W PAR38s before changing to leds. Now exclusively use Philips Hue Color bulbs and always hard white and love that dimmed.
I do accept that it can be done, just pointing out that it?s not as simple as just swapping a tungsten for a dimmable LED and using a standard dimmer switch.
Tim
+1
If you not a fan of LEDs often sold as "daylight" then you are never going to recommend them. I for one prefer the harsh white light of LEDs to the horrid yellow/orange of traditional tungsten :)
Well there used to be some around that worked well, but after a while so called dimmability tended to go pulsatability, I have to say, but this was a long time ago and things may be more reliable these days. The whole mess of Halogen is but a memory now, as I don't need much light, only for visitors!
Brian
Yes. Although maybe not from a supermarket, etc.
In my kitchen/diner I had (I think) a Decorlamp 100w tungsten above the table. It's a large envelope (4") frosted so the entire thing looks uniform,and I liked as you can see the bulb. Used a great deal as my laptop is there. They ceased to be available, so eventually found a warm white LED which looks the same on or off and gives pretty well the same output. Other lights to the worktops were PAR 28 - and eventually found some decent LEDs for those too. But all expensive. And I had to change the dimmers too. Total cost about £150 - but at least I'm happy they don't look that much different from tungsten, apart from when dimmed.
Must admit I've now got used to the colour temperature not changing when dimmed.
Other thing is tungsten gets horribly inefficient when dimmed, so doesn't save much in running costs. I assume LED is very much better.
Yes, they are much better - efficiency remains almost as high, in other words you get all the light you are paying for.
Harry Bloomfield Esq. snipped-for-privacy@harrym1byt.plus.com> wrote
Just as high in fact.
in other
I've not noticed any of my LEDs (all expensive, rather than supermarket replacements) that change colour temperature as you dim them.
?Look colder? (in my opinion). But my point is the colour temperature doesn?t change as you dim LEDs, and if you?re used to tungstens, you kinda expect increased warm as you dim them.
I?m guessing you understand all this and are just nit-picking. I think everyone else understood my point.
Tim
Yes. We got used and liked that fault with tungsten. ;-)
However, I'm happier with LED retaining its efficiency when dimmed. Now I've got use to them.
No - I was making a genuine point. I don't think there is a significant change in colour temp when you dim an LED.
I hated early LEDs, though. Either blue when meant to be daylight, or green when meant to be warm white. Better ones seem to have got round this now.
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