I don’t go anywhere without a camera…….I’m always taking photos these days of anything that catches my eye.
Put one in your car installation inspector, you will be glad you did.
Browse Forums Lighting + Lighting Design Re: Downlights 61Oct 17, 2008 6:13 pm Internal and External Building and Colour Consultant Online - Worldwide http://www.denovoconcepts.com Re: Downlights 62Oct 17, 2008 6:18 pm The camera I have in my phone wouldn't do the lights justice, and I wouldn't know how to get the photo from my phone to the PC anyway... Re: Downlights 63Oct 17, 2008 6:20 pm I have no idea how to use my phone camera………….. Internal and External Building and Colour Consultant Online - Worldwide http://www.denovoconcepts.com Re: Downlights 64Oct 17, 2008 6:23 pm It look like LEDs are starting to make a compelling entrance into mainstream lighting. Even at $200 each, it's worth considering. Superlight has the 3 x 3W for about $100 each, but these would not be a halogen replacement. If done properly, 15W of LED should have the same light output as a 50W halogen. So, in a typical house, you may be looking at 50 downlights at (soon) $100 each, which is $5000. Not all that much when you look at the entire building cost.
Here's the good bit. If they last 50,000 hours then if you have them on for an average of 3.4 hours per day, the lights will last 40 years, which is the typical life of a house these days! Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: Downlights 65Oct 17, 2008 7:01 pm Casa, I'd expect there was at least 50 of these fittings on the ground floor, and I didn't even look on the other 3 floors - that would be $10,000, just for ground floor LED lights (and not including the other lights they had)! The time before they'd need to be replacemed (based on 50,000hrs) would be dramatically reduced for commercial premises, which may have them on 24/7 - meaning they wouldn't even last a year, but even having them on for only 8hrs/day 6days/week wouldn't even increase the life-span to 3 years... But in saying that, this isn't forum.commercialone.com.au Re: Downlights 66Mar 05, 2018 5:45 pm To my knowledge, the fluorescent lights (CFL included) are traditionally non-dimmable. However, I believe now there are some dimmable CFLs available in the market, but they cost around $22-25 a pop. Pretty sure Beacon has them. Re: Downlights 67Aug 13, 2019 3:53 pm Apologies for posting in the old thread but I have a question in similar topic so just using this thread instead of creating a new one. We haven't had our electrical appointment yet but wanting to be ready. We are building a double storey 52 square and by just marking the number of LED downlights on our plans it would be around 100 in total. We have two options either 5000K or 3000k both 10Watts LED. We will go for 5000k as we prefer brighter lights due to vision issues. Is this too much or just right? I don't think it is but I'm not sure. I've heard it's cheaper to have them installed after hand over (e.g. builder to install batten lights then change to LED downlights after hand over) but if you factor in the cost of batten lights with the builder then after hand over I'll have to buy LED downlights + labour cost - would that be the same? Thanks and appreciate your inputs. Re: Downlights 68May 09, 2020 6:09 pm Melbournevic We have two options either 5000K or 3000k both 10Watts LED. We will go for 5000k as we prefer brighter lights due to vision issues. Is this too much or just right? I don't think it is but I'm not sure. 5000k is too bright for household applications.. except when used for task lightings like in the kitchen or garage. Re: Downlights 69May 09, 2020 8:52 pm rantapawan Melbournevic We have two options either 5000K or 3000k both 10Watts LED. We will go for 5000k as we prefer brighter lights due to vision issues. Is this too much or just right? I don't think it is but I'm not sure. 5000k is too bright for household applications.. except when used for task lightings like in the kitchen or garage. 3000K or 5000K does not indicate the brightness of the light, its the kelvin rating or in simple terms the colour of the light..5000k will be a very “white” light where the 3000k will be more towards a halogen colour “orange” light which is softer and warmer in colour and better for living rooms etc..even 3000k leds are quite white in colour.. Actual brightness is measured in Lumens.. Re: Downlights 70May 10, 2020 2:08 am 3000K colour temperature is called ‘warm white’. This is traditionally a relaxing home colour although home lighting tastes are now changing. 4000K is called ‘cool white’. This is used in all offices and most shops. 5000K is called ‘day light’ and is common in factories, warehouses and outdoor flood lighting. Some people, particularly those living in, or whose heritage is from warmer climates, prefer 5000K or higher colour temperatures everywhere. Most home downlights have a slide switch on their backs to select 3000, 4000, 5000K. This is set at installation but is easily changed later by the homeowner. Brightness (Lumen output) is normally controlled with a dimmer control on the wall switch. All but the very cheapest of home downlights are capable of dimming from about 10% to 100% of brightness. With downlights another consideration often missed is the spread of their beams. Many cheap smooth faced downlights deliver a wide light beam which can be quite harsh and glarey, particularly in bedrooms or with 6 or more of them in living areas. Re: Downlights 71May 11, 2020 2:15 pm Scooter13 rantapawan Melbournevic We have two options either 5000K or 3000k both 10Watts LED. We will go for 5000k as we prefer brighter lights due to vision issues. Is this too much or just right? I don't think it is but I'm not sure. 5000k is too bright for household applications.. except when used for task lightings like in the kitchen or garage. 3000K or 5000K does not indicate the brightness of the light, its the kelvin rating or in simple terms the colour of the light..5000k will be a very “white” light where the 3000k will be more towards a halogen colour “orange” light which is softer and warmer in colour and better for living rooms etc..even 3000k leds are quite white in colour.. Actual brightness is measured in Lumens.. A light having a higher color temperature appears brighter. Re: Downlights 72May 11, 2020 2:39 pm Higher colour temperature LED lights are also a bit brighter than lower colour temperature lights with the same amount of input power. About 10-20% brighter, therefore they are more energy efficient which has an added benefit of reducing costs in industrial applications like warehouses. The reason is to deliver the warmer lower temperature colours the lights use a thicker coating layer of yellow or orange phosphorus material on the LED chips to convert the original blue/white light that LED chip emits to a warmer colour. This thicker phosphorus layer also blocks more of the light from getting out. Re: Downlights 73May 11, 2020 4:13 pm Norfolk Higher colour temperature LED lights are also a bit brighter than lower colour temperature lights with the same amount of input power. About 10-20% brighter, therefore they are more energy efficient which has an added benefit of reducing costs in industrial applications like warehouses. The reason is to deliver the warmer lower temperature colours the lights use a thicker coating layer of yellow or orange phosphorus material on the LED chips to convert the original blue/white light that LED chip emits to a warmer colour. This thicker phosphorus layer also blocks more of the light from getting out. Only until a point..6000k or 8000k will have a very blue hue and begin to become purple the higher you go and will lose output.. We have the LED downlights with adjustable switch and i have them set on 3k in living areas and 4k in bathroom..the 5k setting taints colours in the house and looks odd, i cant see where anyone would use it over the others.. Re: Downlights 75May 11, 2020 4:29 pm I agree with you, however It's a personal and cultural preference. The main reason for 3,4,5K is in the light there are 2 sets of LED chips: 3K and 5K. To deliver desired 4K on the adjustable switch from a minimum quantity of LED chips they mix light from 3K and 5K. This saves both manufacturing and supply chain inventory costs vs. having separate fixed colour down lights. Re: Downlights 76May 11, 2020 4:34 pm 2700K is the old warm yellow 60W traditional edison technology incandescent light colour. 3000K is light delivered by halogen incandescent bulbs which burn a bit whiter and hotter, and slightly more efficiently. LEDs have been designed to mimic these traditional bulb types but using about only 20% of the energy. Coffee shops will run approx. 2000K for ambience. |