Browse Forums Lighting + Lighting Design Re: Warm or cool LED lights 21Jan 09, 2012 11:47 am The reason I mention warm white for makeup is purely because the CRI is always higher in lower kelvin LED products. Sure the sun may be 5600k but it has a full color spectrum unlike LED. Re: Warm or cool LED lights 22Jan 10, 2012 10:04 pm think_wise The reason I mention warm white for makeup is purely because the CRI is always higher..... And one wonders if the CRI of some of the Lucky-Dragon-Brand LEDs would even be 50 !! Seriously though, for all the talk about LEDs, their brightness, longevity, cooling and the like, it's very rarely that their CRI gets mentioned, IMHO equal in importance to brightness !!! P_D . Block settled 07 June 2011 Our little piece of the Interwebs on HomeOne....... viewtopic.php?f=31&t=48577&start=0 Re: Warm or cool LED lights 24May 02, 2012 1:16 pm I agree with most posters, its down to your tastes and decor, typically only see natural white and cool white in kitchens bathrooms and laundries where that hospital sterile look can be appealing, i personally like 4100K so i get the brightness required with a slight touch of warm to soften the enviroment, and maintain some decent RA/CRI. Re: Warm or cool LED lights 26May 06, 2012 7:30 pm I personally have cool white in most of my house only have warm in the theatre room and will be changing these to cool soon also. Much prefer the cool as it gives a nice crisp clean light and is much brighter. I prefer brighter but I am the type of person that opens the blinds the moment I am out of bed and closes them as late a possible so I can get as much light as possible into the house hate having a dark house. Do not regret getting cool at all Cheers Janet Re: Warm or cool LED lights 27Jul 10, 2012 6:36 pm I am about to order some led downlights to trial for colour. I have a choice of warm white, natural (daylight), or cool white. The are a new "cob" stye chip with approx 1400 lumen and about 400 lux at 2.5 metres. Settlement 1/2/12 New Shed 23/3/12 Slab poured 27/3/12 Frame complete 4/5/12 Roof complete 1/6/12 LOCKUP 29/6/12 Our new build blog http://kareenhillsownerbuild.blogspot.com/ Re: Warm or cool LED lights 28Jul 12, 2012 12:26 pm I think a question you need to think about, is do you want you lights giving a consistent yellow shading to your colour scheme, or do you want the colour scheme to stand by itself. We have some lovely wet sand coloured walls in our living area and the room feels very warm and inviting with the cool white LEDs. Our kitchen with nice blues feels more cool and it works perfectly. I can concur with the previous poster, do NOT mix the two in an open area, we missed one Halogen and it looks sickly yellow when turned on.
If your colour scheme was designed for yellow tint lighting the go warm white, if you want the colour scheme of the house to speak for itself go cool white. Warm or cool LED lights 29Jul 12, 2012 1:00 pm I really struggle with cool white lighting in a domestic setting, anywhere other than possibly the laundry or utility room. For me, warm white is far more relaxing and differentiates the home environment from work. Re: Warm or cool LED lights 30Sep 15, 2012 5:14 pm Have a look at http://www.wattsaver.com.au/DL7-1400.html http://www.wattsaver.com.au/DL9-1400.html These come in warm white, natural daylight and cool white. We chose natural daylight as it didn't have the bluish tinge cool has. Settlement 1/2/12 New Shed 23/3/12 Slab poured 27/3/12 Frame complete 4/5/12 Roof complete 1/6/12 LOCKUP 29/6/12 Our new build blog http://kareenhillsownerbuild.blogspot.com/ Re: Warm or cool LED lights 31Sep 15, 2012 6:08 pm I went into an LED lighting wholesaler in Sydney and they had a great setup to demonstrate the difference between cool and warm LEDs. In the demo room they had a timber floor and white walls with a few gloss white things. The timber floor looked terrible and washed out with the cool lights but came up great with the warm. The walls and gloss white looked yellow under the warm but true White and vibrant with the cool. As we will have off white tiles, gloss white cupboards and shiny granite bench tops then it is quite clear that the cool white LEDs are what we need. If anyone has timber floors, woodgrain cupboards,earthy tones etc the I would recommend the warm lights. What is absolutely certain is that they should not be mixed. To be on the safe side in case they are just too bright we will be using dimmers on all the 15 watt LEDs in our living areas and normal 9 watt LEDs only in the halls, doorways etc. Re: Warm or cool LED lights 32Sep 20, 2012 11:07 am I am happy to see people recommending LED's but what products were being shown in that showroom, not all cool white products will wash out timber floors, what Kelvin was the cool white (ive seen claims from 4000k-6500k), I think mentioning some product specs would be helpful to everyone making the decision on what to install. As referenced before CRI is the main factor is color you are referring to. Re: Warm or cool LED lights 33Sep 20, 2012 4:12 pm These were the ones and the CRI is claimed to be 85. I have no idea what that means I only made my decision on what I saw with the various colours and wood on display. http://www.ledlighting.com.au/EVO50.html Re: Warm or cool LED lights 34Sep 21, 2012 12:16 pm Those Evos are good quality, I believe they are Cree (real) chips so those CRI figures sound correct. Re: Warm or cool LED lights 35Sep 21, 2012 4:52 pm think_wise Those Evos are good quality, I believe they are Cree (real) chips so those CRI figures sound correct. Thanks and really appreciate your technical input. As I said cool white ones made made the timber floor looked washed out and the bright whites look sensational while the warm ones made the floor look great and the walls and especially the gloss whites look yellowish. I stand by my opinion that it has more to do with your decor than only personal taste. The demo room was great for seeing the difference and as we have white tiles, gloss white cupboards and shiny black granite bench tops in our living kitchen area then cool was the choice. Once you have chosen then what is important is to continue the same choice in adjoining areas because what is very annoying to any is when there is a mixture. As an aside what is your impression of these? Apparently they have Edison (not sure if real) chips. http://www.lumoslighting.com/pro_detail ... =44&pid=72 Re: Warm or cool LED lights 36Sep 28, 2012 10:01 am With the current range and pricing of COB chips on the market I don't really see any need to use the multi chip design, those companies who choose to are either cutting costs or not aware of the optics available on COB products. Edison are a packaging house and use Epistar from memory, very few people will quote a packaging company eg. sharp, everlight, hongli, refond etc without it being real because its too easy to tell if its not (pictures are on their websites) very little chips are actually "fake" but packaged poorly ie. CREE, Nichia, bridgelux etc because any man and his dog can go and make chips in his backyard by buying substrate direct and sticking 'cree' on the box. I suppose its similar to TV's, many companies will claim a Samsung panel but they can be nothing alike side by side. Re: Warm or cool LED lights 38Nov 21, 2012 5:37 pm COB Chips or multi chips, COB chips are actually very cheap if not cheaper than individual chips. Individual chips are general higher efficiency the COB and they dissipate heat better, meaning they will last longer. 1Watt LEDs have the highest LM/W efficiency. So I would always go with a good quality multi chip design. Nearlly every LED manufacturer in China uses 'CREE' , 'Bridgelux' etc. This only referrer to the chip or die used and the package in which the LED is in is a generic mold or public mold. There are very few LED lights which are made from a completed CREE LED from the CREE factory. So I'm just reading up on this ecosystem of lights. I'm planning on putting deck lights along the outside edge of a large deck. Will need about 3 packs (18 lights) plus… 0 23023 |