LED Lighting

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#722681 25-Nov-2012 20:21

I got some "5w" ones off ebay that the bottom half is a gharish gold heatsink (seriously, who wants gold on their lights? Ick) and they are nothing like 5w, they flicker at 100Hz and when the switch is off they all have a slight glow from the leakage capacitance on the multi way switching wire.

Oh, and all the light goes up, into horrid circles on the cieling. They clearly attempted to put some transparent plastic in the lamp to look like a filiment, but all it does is act like a lens projecting the circles up.

Richard rich.ms

timmmay

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#722684 25-Nov-2012 20:28

Skolink:
timmmay:
LimitlessLED: Do you guys know where to get some smaller screw LED, you know the ones, I think they are called E17 or something. my hallway chandelier has 16 of them, so I can get some real savings... and its too high for me to change them often, four have blown, most LED will last 50 years.. so that means I'll never have to change them again.. maybe after 20 years I'll put brighter ones in.

It's easy to get might brighter ones

Really? I have never found one with the equivalent light output of a 60W incandescent (700 lumen) that weren't some huge monstrosity.

700 lumen per bulb is 11,200 lumen if you have 16 in your chandelier. With old 60W bulbs what would be 960W. That seems excessive for a hallway to me, which is why I suggested lower power bulbs - not 1W like I have, but small, lower power bulbs.

richms

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#722690 25-Nov-2012 20:32

Depends on the hallway really. If it really is an entrance foyer then its not unreasonable.

Richard rich.ms

timmmay

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#722695 25-Nov-2012 20:44

richms: Depends on the hallway really. If it really is an entrance foyer then its not unreasonable.

I guess it depends on the size of your mansion... :p

LimitlessLED

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#722698 25-Nov-2012 20:47

for my high entryway chandelier I don't mind 40W ones, 16x 40W E17 leds. because I have 40W incandescent in there now, I don't think my wiring would support 60W incandescent's times sixteen, I think its wired with too loops of wire, so it would be 8x 40W per circuit max. I would love to have 100W equivalents x Sixteen E17.. for just 10W LED each, and that the light output spread was 270degrees each... I'll keep looking, there has to be a huge market for this... all NZ suppliers should refuse to purchase low output LED lighting... see how the factories like it then.. haha. or perhaps this income stream is what is giving factories income to research and develop higher light output because the technology doesn't exist yet?

LimitlessLED

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#722699 25-Nov-2012 20:49

sorry sorry, they are 25W x16 in the chandelier... could have fell and killed myself checking the Watts, let alone changing one blown bulb a month, considering they are on a motion sensor with a timer, they come on and off a LOT. thats also why I think they should be LEDs :)

oxnsox

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#722702 25-Nov-2012 21:00

I have bought ses (small Edison screw) LED bulbs overseas at Ikea, which had a good LED selection if you know anyone going over seas. Otherwise have you considered ses CFL bulbs? I've got some of these in a table lamp, and they're enclosed in a globe case so the Florescent element isn't visible.

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LimitlessLED

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#722706 25-Nov-2012 21:06

if you said CFL a year ago, I would have thought, yes sounds perfect, that's what I'll use. but after watching a movie today called "the day the earth stood still" were the bottom line is that we have to take care of our own planet and not wastefully destroy it, then I think I couldn't bring myself to buy CFL or Incandescent ever again. LED is the only cost effective and smart ecofriendly way.

markhodgeNZ

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#723664 27-Nov-2012 14:55

Well, I sprung for some Viribright bulbs from Bunnings on special in the weekend @ $11.40 for the 5W and standard at $17.77 for the 8W models.

In my lounge I had 5 x 13w CLF Eco bulbs (the smaller sized ones since they looked nicer) and replaced them with 5 x 8W dimmable warm white Viribright LED bulbs. The CLF's are no use on the dimmer (I always had it on full) and the Viribrights are sort of dimmable (ie., turn the dial and at some points they are stable plus less bright - but no where near as dimmable as ye olde incandescent bulbs).

There is no comparison in the amount of lighting.

The 8w Viribright LED's were instantly bright, and VASTLY brighter than the 13w CLF's even after waiting several minutes for the CLF's to reach maximum brightness.

I have also put 5W Viribright WW LEDs in the bedroom lamps and in one of the toilets, in both cases the light output was more than acceptable, and I also put an 8W Viribright in the bathroom replacing an 18W CLF. They were about the same level of brightness.

The 8W Cool White bulbs are probably even better - rated at 650 lumens compared to the Warm Writes rated at 500 - unfortunately she who must be obeyed prefers warm white. Thankfully the Viribrights are nowhere near as horridly yellow as the Eco bulbs were.

Now the jury is only out on longevity... I do note that they no longer write "6 years" on the sides of their bulbs though... (the few 11W older less bright bulbs on the shelves did claim a 6 year life).

Cheers,
Mark

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Niel

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#723690 27-Nov-2012 15:25

I've bought only 8W warm white, as the colour was dictated to me as well. Got about 30 of them in a small qty at a time over about 10 months and with the last batch I've bought they were noticeably yellow. Okay for a bedroom, but not a living space. Hope it is only one batch.

I've had about 3 or 4 fail in total, all within a week or two of purchase and all returned for exchange without trouble. Keep a spare box or two, and the receipt.

And just for completeness (I'm sure you noticed) the 11W older model output less light and does not look nearly as nice.

There is a higher power bulb on it's way, it is on the web site, but don't think the NZ market is large enough to import yet another model.

Regarding dimming, you get different types of dimmers. But for me not worth it as the cost of the dimmer is never recovered by the power saving, rather buy the right bulb for the space. Or switch some off.

You can never have enough Volvos!

markhodgeNZ

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#723702 27-Nov-2012 15:40

Yes, I knew the 11w was an older less glorious model. The joys of an evolving technology :-)

The dimming isn't too much of an issue for me, though it probably would be for some people. I just thought I'd test that aspect since they were labelled as dimmable.

On the positive side, if I turn the dinner slightly it is a tiny bit less bright and I am guessing probably extends the bulb light a year or so. If I put it down to the next sweet point it is about the same level of brightness as the old CLF bulbs use to give =)

Cheers,
Mark

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LimitlessLED

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#732354 14-Dec-2012 02:52

has anyone got any of the 1000lumen LED lightbulbs from trademe, whats the light spread like on them?
trademe.co.nz/home-living/lamps/bulbs/auction-542486855.htm

also, has anyone tried the 4-channel wireless 2.4Ghz controlled LED lights?
trademe.co.nz/home-living/lamps/bulbs/auction-542737755.htm

Skolink

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#732392 14-Dec-2012 09:27

LimitlessLED: has anyone got any of the 1000lumen LED lightbulbs from trademe, whats the light spread like on them?
trademe.co.nz/home-living/lamps/bulbs/auction-542486855.htm

also, has anyone tried the 4-channel wireless 2.4Ghz controlled LED lights?
trademe.co.nz/home-living/lamps/bulbs/auction-542737755.htm

I would definitely ask to see a test certificate for the claimed performance before purchasing luminaires from Trademe.

ubergeeknz

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#732400 14-Dec-2012 09:39

I got one of these:

http://www.electronicworld.co.nz/shop/Lights+%26+Bulbs/LED+Replacement+Bulbs/7W630Lm+Bayonet+Base+B22+240V+Cool+White+LED+Replacement+Bulb.html

and installed it in the bathroom... used to have an 11w CCFL until it packed up (like almost every other ccfl I've bought in the last 5 years).

So bright, light spread is superb, and the colour is like daylight. Very impressed so far. I got it for $20 (+p&p) using a Genesis Energy discount code... GenesisLED

Niel

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#732577 14-Dec-2012 14:04

The intensity per Watt spec given on TradeMe, eBay, Deal Extreme, etc. is almost always the max the LED element can produce either with a reduced service life or at low power where efficiency is better. However, neither are where the light bulb operates so 110 lumen per Watt is rubbish. Good light bulbs are in the order of 80 lumen per Watt. I've even had a bulb shipped to me saying it is 9W but was actually 6-7W (measured with lab equipment), eventually the seller admitted 9W is the max the LED element can be operated at but not what the bulb is designed for.

Stick with brand names. ViriBright (at Bunnings) is relatively cheap, but others like the above Genesis offer are catching up.

I am impressed with the Philips fittings mentioned here and will take a photo sometime. I would certainly consider them as good as 100W daylight incandescents.

You can never have enough Volvos!

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