Welcome Guest ( Log In | Register )

Bump Topic Topic Closed RSS Feed
5 Pages « < 2 3 4 5 >Bottom

Outline · [ Standard ] · Linear+

 LED LED LED LED, Lets talk about LED

views
     
Hornet012
post Jul 10 2013, 05:12 PM

Getting Started
**
Junior Member
71 posts

Joined: Sep 2005


QUOTE(ksyap01 @ Jul 9 2013, 09:36 PM)
Aztech is origin from Singapore? The driver reliable? heard LED driver life span short is poor quality.

Any 6" square LED bulb 9~12w? Budget less than rm50/unit.
*
lots of choice for that budget. But it usually won't last for more than 2 years (depend on your luck) tongue.gif
TSzealless
post Jul 11 2013, 10:58 AM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(Hornet012 @ Jul 10 2013, 05:12 PM)
lots of choice for that budget. But it usually won't last for more than 2 years (depend on your luck) tongue.gif
*
Agree, but YET and Evanzo going to setup factory in Malaysia, so i think they will start giving warranty for 1 year
quality wise, is a cent to a cent quality

simplety
post Jul 13 2013, 10:22 PM

Getting Started
**
Junior Member
147 posts

Joined: Apr 2009


Hi, really not technically sound on this topic.
Wll ask many stupid questions. Haha.

Can we install LEDs for our new homes? To replace down lights?
Do we need to change the wiring? Since the consumption is much lower.
The led comes in shapes, sizes, designs? Or just tiny little bulbs?
TSzealless
post Jul 15 2013, 01:57 PM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(simplety @ Jul 13 2013, 10:22 PM)
Hi, really not technically sound on this topic.
Wll ask many stupid questions. Haha.

Can we install LEDs for our new homes? To replace down lights?
Do we need to change the wiring? Since the consumption is much lower.
The led comes in shapes, sizes, designs? Or just tiny little bulbs?
*
Yes, you can install LED for your new home, in come in various form, you can but normal fitting and put a LED bulb or tube, or you can use LED downlight that comes in a set.
no, you do not need to change wiring if you already have wiring for your normal light.
downlight comes in square and round. yes, there are tiny halogen replacement as well ...
let me know or other forum people can advise as well.

cheers
Laine
post Jul 16 2013, 12:42 PM

Casual
***
Junior Member
325 posts

Joined: Oct 2005
From: Kuala Lumpur
hi, based on your experience, does the above proposed lighting points looks ok?
10 downlight in the living area seems too much to us.
do you sell 9w square led downlight?
thanks.


Attached thumbnail(s)
Attached Image
weikee
post Jul 16 2013, 01:07 PM

10k Club
********
All Stars
12,019 posts

Joined: Jan 2003
QUOTE(Laine @ Jul 16 2013, 12:42 PM)
hi, based on your experience, does the above proposed lighting points looks ok?
10 downlight in the living area seems too much to us.
do you sell 9w square led downlight?
thanks.
*
Wow 10 LED light for living room? How many switch to control the 10 LED light? and do you have L box?

My house the living room is about the same, I only have 6 CFL downlight, and I have another set of L box T5 light. T5 hardly switch on unless I need bright, like party.
Laine
post Jul 16 2013, 01:37 PM

Casual
***
Junior Member
325 posts

Joined: Oct 2005
From: Kuala Lumpur
QUOTE(weikee @ Jul 16 2013, 01:07 PM)
Wow 10 LED light for living room? How many switch to control the 10 LED light? and do you have L box?

My house the living room is about the same, I only have 6 CFL downlight, and I have another set of L box T5 light. T5 hardly switch on unless I need bright, like party.
*
yes we will be doing L box
looks super overkill to us. a slightly smaller room need only 4, but living needs 10. shocking.gif
btw, there wont be any cove light, the downlight will be the only lighting source.
TSzealless
post Jul 16 2013, 01:38 PM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(Laine @ Jul 16 2013, 12:42 PM)
hi, based on your experience, does the above proposed lighting points looks ok?
10 downlight in the living area seems too much to us.
do you sell 9w square led downlight?
thanks.
*
Hi, if you planning to put 4" LED downlight, 10 nos, you getting about 500 lux , base one 10ft ceiling height, bright color wall, bright color tiles.
that is too much i think, this is brightness more than you get in bank 300 lux !!

i only sell 11w 4" downlight. about 300 lux you need probably only 6 4" 11w LED , pending on colors

TSzealless
post Jul 16 2013, 01:43 PM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(Laine @ Jul 16 2013, 01:37 PM)
yes we will be doing L box
looks super overkill to us. a slightly smaller room need only 4, but living needs 10.  shocking.gif
btw, there wont be any cove light, the downlight will be the only lighting source.
*
300 lux is bright, i would not venture into it, i suggest about 200 lux for living, probably 4 - 5 units
2 units on the tv side and 2/3 unit on the sofa side, you will have some minor dark sport, but mehhh ... u can live with it.
Laine
post Jul 16 2013, 01:51 PM

Casual
***
Junior Member
325 posts

Joined: Oct 2005
From: Kuala Lumpur
QUOTE(zealless @ Jul 16 2013, 01:43 PM)
300 lux is bright, i would not venture into it, i suggest about 200 lux for living, probably 4 - 5 units
2 units on the tv side and 2/3 unit on the sofa side, you will have some minor dark sport, but mehhh ... u can live with it.
*
thanks. do u have a shop or something that i can see your product?
TSzealless
post Jul 16 2013, 01:58 PM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(Laine @ Jul 16 2013, 01:51 PM)
thanks. do u have a shop or something that i can see your product?
*
you can come to our office @ ioi boulevard puchong

we have a show room at centrio bangsar south, but thats like demo unit, for architect and designer only
bizklguy
post Jul 17 2013, 10:32 PM

Casual
***
Junior Member
315 posts

Joined: Apr 2010
Hi all, has anyone here installed Tomi 4" LED downlights+dimmers from Top10?

I am facing "blinking" problem when I turn on the dimmer, and it would blink very often unless I turned the dimmer to the max. Any sifu here can advice?
TSzealless
post Jul 18 2013, 12:06 PM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(bizklguy @ Jul 17 2013, 10:32 PM)
Hi all, has anyone here installed Tomi 4" LED downlights+dimmers from Top10?

I am facing "blinking" problem when I turn on the dimmer, and it would blink very often unless I turned the dimmer to the max. Any sifu here can advice?
*
3 possible way to solve this:

1. maybe your dimmer not compatible with the LED light

2. voltage drop - i am assuming you loop the LED in series, is like switch to 1 to 2 to 3 to 4 back to switch
what you should do is loop parallel , switch to 1 and back , switch to 2 and back etc or use bigger cable if you do series

3. don't loop too many units together, like 8 unit with 2 dimmer switches instead one 1

if is the driver problem, then the unit is not suitable for dimming. then don't dim ...
i think no. 2 is the most common problem, even with Aztech LED
jchong
post Jul 18 2013, 08:31 PM

****************
*******
Senior Member
5,989 posts

Joined: Nov 2005
Good to see you started this thread zealless.

Back to your original question, for me the priority is reliability. The whole light (driver + chip) should be able to last years without problem. Often people promote LED saying it has long lifespan like 50k or 100k hours, but in reality most don't last anywhere as long. Don't know if it is driver issue or chip issue.

Related to reliability is warranty. If something is tested to be reliable I think the manufacturer would give longer warranty.

After that I will look at efficiency - lumens/watt.

Then CRI. I think 70-80 is enough for general use. I don't plan for 90+ CRI unless got some specialized application.
TSzealless
post Jul 19 2013, 11:19 AM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(jchong @ Jul 18 2013, 08:31 PM)
Good to see you started this thread zealless.

Back to your original question, for me the priority is reliability. The whole light (driver + chip) should be able to last years without problem. Often people promote LED saying it has long lifespan like 50k or 100k hours, but in reality most don't last anywhere as long. Don't know if it is driver issue or chip issue.

Related to reliability is warranty. If something is tested to be reliable I think the manufacturer would give longer warranty.

After that I will look at efficiency - lumens/watt.

Then CRI. I think 70-80 is enough for general use. I don't plan for 90+ CRI unless got some specialized application.
*
Hahaha you are correct brother, thats why they say *"up to" 50000 hours, yes, they won't last that long , because once u reach about 35,000k, you lumen degrade is pretty high, you might want to replace to newer tech, high lumen per watt, better driver, i will say good for 4 - 5 years, although technically it could last up to 8 - 10 years

reliability, well, product have no problem on design, the way consumer use it that worries the manufacturer. thats why there are limited warranty.
you see many installer want to be quick and cheap, so they always loop in series, that is not the problem, problem is the wire size they use is the same.

i assume a lot of people understand voltage drop, the longer the wire go, the more the voltage drop, thus a bigger wire is need.
just same as pipe, if u use a small pipe, the outlet near the source, will have very good floor, but the further (horizontally) the flow will drop pretty bad
same for voltage, you need a bigger pipe. well insufficient voltage always the case that cause the LED to flicker and damage the driver. especially dimming
you see we can make the driver very reliable, like handphone factory charger, but i will cost you RM150 a driver, and no one will pay for it.

like a lot of previous sifu have commented, good not cheap, cheap always some flaws, so is like gamble
even the product i sell is not perfect, unless i am selling a 15w downlight about rm400, 150 for driver, 150 for casing and LED, then maybe i am very confident on the quality.
they are quality commercial grade LED that can last 65,000 hours, minimal degration, hi CRI , warranty 5 years ...
but normal consumer won't pay for that, not even big corporates.

thanks for your feedback, i just realise a lot of people don't really need high CRI and i think reliability is the next one

would you consider like lets say, only 25,000 hours , high efficiency 80 -100 lm/w, CRI 70+ , warranty 2 years with good driver
because this will really drop the LED price to top ten price


TSzealless
post Jul 23 2013, 12:38 PM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
Question to all, will you willing to pay for high grade LED for household ?

about RM70 per MR16 with transformer ??
Spec: Bridgelux XML chip, CRI85, Lumen 650lm, 3000k, 40degree, 35000 hours, cast aluminium 58mm length heat sink, CE ROHS certified customise driver

bizklguy
post Jul 31 2013, 10:40 PM

Casual
***
Junior Member
315 posts

Joined: Apr 2010
QUOTE(zealless @ Jul 18 2013, 12:06 PM)
3 possible way to solve this:

1. maybe your dimmer not compatible with the LED light

2. voltage drop - i am assuming you loop the LED in series, is like switch to 1 to 2 to 3 to 4 back to switch
    what you should do is loop parallel , switch to 1 and back , switch to 2 and back etc  or use bigger cable if you do series

3. don't loop too many units together, like 8 unit with 2 dimmer switches instead one 1

if is the driver problem, then the unit is not suitable for dimming. then don't dim ...
i think no. 2 is the most common problem, even with Aztech LED
*
Tx for the advice. I will demand my ID to fix it as I think they hv done wrong in relation to suggestion no2. Tx.
BTimes
post Aug 1 2013, 07:32 AM

Enthusiast
*****
Senior Member
916 posts

Joined: Jan 2013
I have recently installed LED lights in my house, but I'm still a bit worried about the driver lifespan.

Now my another new house is ready, I'm not sure if dimmable LED is a good idea. Any sifus here can advise if it is beneficial to go ahead? Thanks.
Kelv
post Aug 1 2013, 09:39 AM

Be kind to animals
*******
Senior Member
3,988 posts

Joined: Apr 2005
From: KL


Where the best place to get LED strip? I actually need 2 x 110cm only. Jalan Pasar?
TSzealless
post Aug 1 2013, 10:47 AM

On my way
****
Senior Member
542 posts

Joined: Feb 2007
QUOTE(BTimes @ Aug 1 2013, 07:32 AM)
I have recently installed LED lights in my house, but I'm still a bit worried about the driver lifespan.

Now my another new house is ready, I'm not sure if dimmable LED is a good idea. Any sifus here can advise if it is beneficial to go ahead?  Thanks.
*
Hi, good idea, don't dim your LED even it is dimmable
anything pass thru a dimmer, the power factor drops, even you max out dimmer, you can't get 100% brightness out of the LED
unless your LED is too bright and you have dim, then no choice.

5 Pages « < 2 3 4 5 >Top
Topic ClosedOptions
 

Change to:
| Lo-Fi Version
0.0225sec    0.37    6 queries    GZIP Disabled
Time is now: 26th November 2025 - 01:19 PM