LED driver failing rate are higher too.
Downlights - built-in choke or external?, Pros & cons....Please share...
Downlights - built-in choke or external?, Pros & cons....Please share...
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Jan 12 2012, 10:18 AM
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All Stars
12,019 posts Joined: Jan 2003 |
LED driver failing rate are higher too.
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Jan 12 2012, 10:31 AM
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Junior Member
131 posts Joined: Jan 2007 From: Somewhere I Belong |
QUOTE(xecton @ Jan 12 2012, 10:16 AM) What most shops are selling are sub-quality China-made LED lights. There were some measurement made on good quality LED vs poor quality LED, at the same wattage of let say 7W, good one can give as high as 700 lumens while poor one may only give less than 400 lumens. Which the brightness is like 1 good LED bulb = 2 poor LED bulb.These are affordably expensive. Not bright enough with bad colour, and I heard that the controller circuit do breakdown. Not worth it. |
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Jan 12 2012, 10:34 AM
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All Stars
17,023 posts Joined: Jan 2005 |
QUOTE(xecton @ Jan 12 2012, 10:16 AM) Good LED lights are too expensive. Have you notice that most of the good brand for light never hurry to produce LED light bulb. Eg. GE, philip, osram etc.By the time you cover the ROI, the technology would have been a couple generations later. What most shops are selling are sub-quality China-made LED lights. These are affordably expensive. Not bright enough with bad colour, and I heard that the controller circuit do breakdown. Not worth it. So flourescent all the way until LED really stabilizes. While china brand are mushrooming and speedy. It tell me china brand don't R&D and just mass produce it. They can claim last how many thousand of hr. But no warranty. While those good brand will comeout the product later due to time for R&D and don't claim that high spec. But will give you 1-5yrs warranty. So you either payless throw more rubbish (buy more) for china brand or paymore buy less for good brand. I believe the end result is same. Just hard to cross the initial cost. Added on January 12, 2012, 10:41 am QUOTE(Hornsen @ Jan 12 2012, 10:31 AM) There were some measurement made on good quality LED vs poor quality LED, at the same wattage of let say 7W, good one can give as high as 700 lumens while poor one may only give less than 400 lumens. Which the brightness is like 1 good LED bulb = 2 poor LED bulb. It very hard to measure all this lumens when 10 shop you go, don't no what is lumens. People here corrupt with using watt which is incorrect. And those saleman know, will hide it cause they know LED don't produce bright enough as T5 or CCFL. This post has been edited by ozak: Jan 12 2012, 10:41 AM |
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Jan 12 2012, 10:44 AM
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All Stars
12,019 posts Joined: Jan 2003 |
LED is good, but it still need more research and work to be done.
BTW, anyone use the Philip dimmer and remote bulb? Dam cool Price is dam hot. |
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Jan 12 2012, 10:47 AM
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Senior Member
734 posts Joined: Feb 2006 From: Penang |
Phillips do have LED lights. It's just that the price is not something you want to pay for.
I remember one forummer buying a Phillips Ledino Hanging Lamp. Not sure if it's just more than 1K or above 2K. I'm going to buy a single LED wall light for my bedtime reading. Reason is that the light is concentrated and cool. RRP is RM250, I can get it at staff price though, RM180. The model with 2 LED is priced at RM300. Ikea is selling a unit similar to what I want too. Priced at RM95 I think. What I don't like is that the driver is an external unit. China brand ones, I think I saw before priced at RM85, probably can get it at RM70. Light is not good, even the build is not good. Edit: I think Ikea's LED might be from Osram. This post has been edited by xecton: Jan 12 2012, 10:51 AM |
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Jan 12 2012, 10:54 AM
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All Stars
12,019 posts Joined: Jan 2003 |
Good to use LED is Mag torch light. Battery will last very long, and light can go far far.
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Jan 12 2012, 11:34 AM
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Junior Member
131 posts Joined: Jan 2007 From: Somewhere I Belong |
QUOTE(ozak @ Jan 12 2012, 10:34 AM) Have you notice that most of the good brand for light never hurry to produce LED light bulb. Eg. GE, philip, osram etc. One of my friend who work in Lumileds told me good brand do come up with LED light bulb first.While china brand are mushrooming and speedy. It tell me china brand don't R&D and just mass produce it. They can claim last how many thousand of hr. But no warranty. While those good brand will comeout the product later due to time for R&D and don't claim that high spec. But will give you 1-5yrs warranty. So you either payless throw more rubbish (buy more) for china brand or paymore buy less for good brand. I believe the end result is same. Just hard to cross the initial cost. But a few years back in the early stage when the LED light bulb is still very expensive they only target for commercial project, the price of LED light bulb is high because they need to cover their research team. And now when the manufacturing cost of LED light bulb is getting cheaper then only they push it to residential usage. |
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Jan 13 2012, 08:41 AM
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Junior Member
279 posts Joined: Jan 2003 |
this LED downlight seems nice with a lot of good review
http://www.homedepot.com/buy/lighting-fans...ck-e-39641.html It's made by cree but not sure if anything similar here. if yes would like to give one a test as so many good review over the net. |
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Jan 13 2012, 08:50 AM
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17,023 posts Joined: Jan 2005 |
QUOTE(weikee @ Jan 12 2012, 10:54 AM) Expensive wor. Last year search this mag led light till HCM vietnam. Selling at RM200 for the AA battery type.Added on January 13, 2012, 8:52 am QUOTE(Escaflowne @ Jan 13 2012, 08:41 AM) this LED downlight seems nice with a lot of good review But cannot find in local.http://www.homedepot.com/buy/lighting-fans...ck-e-39641.html It's made by cree but not sure if anything similar here. if yes would like to give one a test as so many good review over the net. Using this cree downlight need 2pcs instead of 1 for the CFL. The lumens is only 576. This post has been edited by ozak: Jan 13 2012, 08:52 AM |
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Jan 13 2012, 09:59 AM
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All Stars
12,019 posts Joined: Jan 2003 |
QUOTE(ozak @ Jan 13 2012, 08:50 AM) Expensive wor. Last year search this mag led light till HCM vietnam. Selling at RM200 for the AA battery type. Mag itself not cheap also... |
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Jan 13 2012, 11:57 PM
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Junior Member
61 posts Joined: Aug 2008 |
I've research LED downlights for my new place, it seems CREE have a good name http://cr6.creeledlighting.com/#/content/pages/8.html but they are very expensive! They are not sold in Malaysia, I got the price from the Hong Kong distributor it was HKD700 per light that's RM280, not practical! I've found a China made one from Shenzhen for USD25 per light using Phillips LED. That seems reasonable and it will bring about savings in the electric bill in the long run. I will pick them up when I visit HK over CNY, make a day trip to Shenzhen.
I've also seen a new shop open in Mid Valley concentrating solely on LED lighting, but most of the stuff there were selling is China made with a heavy mark up! LED is definitely the way forward! |
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Jan 14 2012, 12:05 AM
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All Stars
12,019 posts Joined: Jan 2003 |
QUOTE(tdled @ Jan 13 2012, 11:57 PM) I've research LED downlights for my new place, it seems CREE have a good name http://cr6.creeledlighting.com/#/content/pages/8.html but they are very expensive! They are not sold in Malaysia, I got the price from the Hong Kong distributor it was HKD700 per light that's RM280, not practical! I've found a China made one from Shenzhen for USD25 per light using Phillips LED. That seems reasonable and it will bring about savings in the electric bill in the long run. I will pick them up when I visit HK over CNY, make a day trip to Shenzhen. You pay what you get. Once you got your hand on the Shenzhen made LED. Do update us how the performance and long term reliability. I've also seen a new shop open in Mid Valley concentrating solely on LED lighting, but most of the stuff there were selling is China made with a heavy mark up! LED is definitely the way forward! MV, no need go in. Is slaughter house. Go Singapore Sim Lim plaza better. |
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Jan 14 2012, 12:33 AM
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Senior Member
558 posts Joined: Jan 2003 |
Our local Municipal are moving towards LED as well. Those who travel along Subang Airport road and KL-Bentong will notice the streetlight has been changed to LED and they do look reliable. Maybe can find out the brand and see if they do produce household DL as well
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Jan 14 2012, 12:37 AM
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Junior Member
61 posts Joined: Aug 2008 |
probably CREE, they seem like the main player in this line. US design but of course made in China!
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Jan 14 2012, 12:45 AM
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Junior Member
279 posts Joined: Jan 2003 |
QUOTE(tdled @ Jan 13 2012, 11:57 PM) I've research LED downlights for my new place, it seems CREE have a good name http://cr6.creeledlighting.com/#/content/pages/8.html but they are very expensive! They are not sold in Malaysia, I got the price from the Hong Kong distributor it was HKD700 per light that's RM280, not practical! I've found a China made one from Shenzhen for USD25 per light using Phillips LED. That seems reasonable and it will bring about savings in the electric bill in the long run. I will pick them up when I visit HK over CNY, make a day trip to Shenzhen. Thanks for the response.I've also seen a new shop open in Mid Valley concentrating solely on LED lighting, but most of the stuff there were selling is China made with a heavy mark up! LED is definitely the way forward! It seems that there are several versions of cree lights. The one shown above is most probable LR6 variant which is on the higher side of pricing. the one from home depot in US is the CR6 and some places are selling it for used 25 the lowest after some discount. I hope the LED price will go down at a faster rate than before. I contacted a friend in the states which is willing to help with the purchase however the shops don't have 220v version as US is using 160v. I even checked with Cree and they said they don't have this at the moment. I did manage to mail the CEO (unintentionally) and he said he's checking with their LED lighting product team to response but I haven't got any replies yet. Surprisingly also one of the general manager is actually based in penang. check out the link below. Soo Ghee Lee, vice president and general manager, Asia Pacific, comes to Cree with more than 25 years of optoelectronics experience, most recently with Avago Technologies where he was vice president and general manager for the solid-state illumination division. He will be responsible for the development of new revenue streams and extension of customer relationships in Asia Pacific. Lee’s appointment is effective January 14, 2008, and he will be based in Penang, Malaysia. http://www.cree.com/press/press_detail.asp?i=1200317922942 hope can get this here and also at a good price so there's high adaptation rate which will drive down the price even further . |
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Jan 14 2012, 09:40 AM
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All Stars
17,023 posts Joined: Jan 2005 |
QUOTE(Escaflowne @ Jan 14 2012, 12:45 AM) Thanks for the response. Since 2008. That is 4yeras ago and seems no sign of any cree product here and 220V region. That is slow.It seems that there are several versions of cree lights. The one shown above is most probable LR6 variant which is on the higher side of pricing. the one from home depot in US is the CR6 and some places are selling it for used 25 the lowest after some discount. I hope the LED price will go down at a faster rate than before. I contacted a friend in the states which is willing to help with the purchase however the shops don't have 220v version as US is using 160v. I even checked with Cree and they said they don't have this at the moment. I did manage to mail the CEO (unintentionally) and he said he's checking with their LED lighting product team to response but I haven't got any replies yet. Surprisingly also one of the general manager is actually based in penang. check out the link below. Soo Ghee Lee, vice president and general manager, Asia Pacific, comes to Cree with more than 25 years of optoelectronics experience, most recently with Avago Technologies where he was vice president and general manager for the solid-state illumination division. He will be responsible for the development of new revenue streams and extension of customer relationships in Asia Pacific. Lee’s appointment is effective January 14, 2008, and he will be based in Penang, Malaysia. http://www.cree.com/press/press_detail.asp?i=1200317922942 hope can get this here and also at a good price so there's high adaptation rate which will drive down the price even further . Cree is just setup a factory in china last year. |
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Jan 14 2012, 11:55 AM
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Junior Member
279 posts Joined: Jan 2003 |
QUOTE(ozak @ Jan 14 2012, 09:40 AM) Since 2008. That is 4yeras ago and seems no sign of any cree product here and 220V region. That is slow. haha didnt notice the date.. I guess no luck then .. hopefully other manufacturers could bring good quality LED here and the price would go down soon.Cree is just setup a factory in china last year. |
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Jan 14 2012, 01:03 PM
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All Stars
17,023 posts Joined: Jan 2005 |
QUOTE(tdled @ Jan 13 2012, 11:57 PM) I've research LED downlights for my new place, it seems CREE have a good name http://cr6.creeledlighting.com/#/content/pages/8.html but they are very expensive! They are not sold in Malaysia, I got the price from the Hong Kong distributor it was HKD700 per light that's RM280, not practical! I've found a China made one from Shenzhen for USD25 per light using Phillips LED. That seems reasonable and it will bring about savings in the electric bill in the long run. I will pick them up when I visit HK over CNY, make a day trip to Shenzhen. The spec you show doesn't look good and efficiency. 350lumens at 10w is low. And a 90deg beam won't wide enough space to brighten.I've also seen a new shop open in Mid Valley concentrating solely on LED lighting, but most of the stuff there were selling is China made with a heavy mark up! LED is definitely the way forward! |
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Jan 14 2012, 01:44 PM
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Junior Member
61 posts Joined: Aug 2008 |
so you think its not worth buying?
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Jan 14 2012, 01:54 PM
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17,023 posts Joined: Jan 2005 |
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