CFLs or LEDs for domestic lights?

Thanks that does make sense, LED torches ain't much better when you start to compare. They light up an area but not to the intensity of a small quartz bulb.

last night went out for a meal and noticed that the lights were coloured

- looking through the gaps there were ordinary tungsten bulbs - this place is fairly new and I would have thought that energy saving bulbs would have be installed in a new restaurant.

lighting.

alent to what I was replacing, so I could best

that has provision for 3 lamps, and I have

us fine.

om the lack of light intensity, or bad white

off married life with a kero fridge too.

were outputting.

these become acceptable.

. :-(

T5 straight fluros are excellent. Have been using here for about 12 months now. Much better than the equivalent CFL

my experience is 3watt led = 3watt CFL (if that were possible) - still useful lighting for the toilet and perhaps some outdoor lighting where low intensity is sufficient

With the limited experience here we found 15 watt cfl needs at least a

12w led to get anything approaching decent illumination , with the replacement for my Maglight I went to a 2.8 led to better the std bulb , it currently uses 3 re-chargable batteries and a spacer for the right voltage and lasts well on use with good illumination and a reasonable soft white

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Don McKenzie wrote

lighting.

outputting.

I've only just changed over to a CFL for the bedhead light you bugger.

I did try one there decades ago but it didnt last very long.

I was using normal incandescent bulbs, on an X10 dimmer. I have all the lights on the X10 system, so it was convenient to go to bed by having the system turn that bedhead light on, soft start using the dimmer, and then turn the house lights off after 5 mins or so, and then dim the bedhead light half an hour later or so. I dont read in bed anymore. Turn the bedhead light off with a manual switch in series when going to sleep.

That way when you turn the bedhead light on again in the morning or during the night, it comes on at less than full brightness so you dont feel its too bright. I almost always get up in the dark, even in summer.

That bulb last for a decade or so, because its on a soft start. Just had it fail and couldnt put my hand on the stash of incandescent bulbs quickly so put one of the free CFLs I got in the fitting instead. Its such a soft light even when on full that there isnt any need to dim that one for when you turn it on in the night after sleeping.

Gunna be interesting to see how long it lasts this time.

I hate those CFL's their freak'n useless, who wants grey light!! You need about 3-4 CFL to equal a standard bulb that you can read by. So the energy used is almost the same, defeating the whole purpose of "energy saving", and at 4x the cost of bulbs there not that better off.

LEDS are Ok if you have like a Hundred of them, otherwise you would have to sit almost on top of it to read by.

You just can't beat Old Technology, these are just another example of Newer Technology being more expensive and not as good as the Older Technology.

Yup, I tried some too, and found much the same. When you think about the fact that both light sources are actually phosphors, one pumped by mercury arc in fluoro, and one by UV emission in the LED, maybe you see why the light output is about the same per watt. The phosphors must be about the same in conversion efficiency. And in a fluoro, you have a much bigger area of emitter, so a better light spread, and not as much point heat dissipation as in a LED.

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Regards,

Adrian Jansen           adrianjansen at internode dot on dot net
Note reply address is invalid, convert address above to machine form.

Medium/high power LEDs are still too pricey for mass consumption but give them a couple years... If anyone wants to test how a LED lamp compares to a CFL I'd suggest the relatively inexpensive IKEA table lamp called Jansjo

I found it really good for reading but don't expect its light intensity to come even close to a G23 table 9 Watt CFL, which is the one I tested it against.

asdf wrote

Fark, the ripoff merchants want 3 times as much for it here.

Just for that one tho, must be on special or sumfin.

Don,

I just got some

and very happy with them. They replaced 4 50 W halogens in my kitchen.

I also got

, they replaced 2 40 W bulbs in kitchen hood and work very well. I have to add that original hood bulbs were around $3.50 to buy (Philips brand) and failing at the rate of 1 per month (don't know why, fan vibration?)

Now the question is how long they will last as only been in service for short time.

Tom

n

They might also be good to replace these 'candle" shaped bulbs as the shape is similar

They tend to have a large failure rate, I think its mostly to do with them usually being used pointing upwards, which prevents heat travelling up the stems and to the base as a heatsink.

lighting.

alent to what I was replacing, so I could best

that has provision for 3 lamps, and I have

us fine.

om the lack of light intensity, or bad white

off married life with a kero fridge too.

were outputting.

these become acceptable.

. :-(

LEDs worked great for my back deck:

ow-thermal-design-sucks/ Skip to the end if you want to see the final effect.

Dave.

I'd consider some led torches to have superior light to any incandescent that I've owned. The 2AA led lenser that I own is spectacular. I assume that it has a luxeon module.

Had anyone used the luxeon type halogen downlight replacements? I'd be interested in using them for work lighting, or even bedside reading if I can find a suitable dimmable table lamp to take them.