Welcome Guest ( Log In | Register )

7 Pages < 1 2 3 4 5 > » Bottom

Outline · [ Standard ] · Linear+

Renovations Lighting, You Light Up My Life

views
     
ozak
post Mar 24 2012, 10:02 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(Escaflowne @ Mar 24 2012, 08:58 PM)
Hi Ozak,

so how are you planning to install the 120v here ?

Will use some sort of convertor ? I think it wouldn't work without somekind of modification right?

I tried contacting cree sales rep and even their CEO (Chuck_Swoboda-at-crxx) last time and it seems that they don't have plans for a 220v version.

they only have lr6 which is on the expensive side..

at least cr6 is a bit reasonable especially the rebadge homedepot

If they offered the cr6 in 220v version at a similar price, I would have bought a few ..

hopefully they would change their minds for our market if there's a lot of demand ..
*
Yes, their lr6 220v is overprice. But this model have a 1000 lumens. The brightness so far.

I try get 1 and modify the driver. I intend to run it on DC voltage. Just try and error.
ozak
post Mar 30 2012, 09:39 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(idoblu @ Mar 30 2012, 06:25 PM)
how about these Cree downlights that uses 220-240v?

http://www.creeledlighting.com/International.aspx
*
A lot better than those china led. If you don't mind the price.
ozak
post Mar 30 2012, 10:07 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(idoblu @ Mar 30 2012, 09:54 PM)
how much per piece? this type can change the bulbs if rosak nanti?
i think i cant afford it already.

even china made also not cheap.

what is another alternative?
*
From the forumer here said, probably cost rm400+. The led cannot change. It come in whole set.

The alternative is use CFL.
ozak
post Mar 30 2012, 10:42 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(idoblu @ Mar 30 2012, 10:30 PM)
can i replace my halogen running on 12v with these?
just change the bulb?

http://www.ebay.com/itm/5x-MR16-GU5-3-CREE...#ht_4733wt_1163
*
If your halogen is 12vdc and same kaki, should be no problem.
ozak
post May 14 2012, 12:21 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(eastern @ May 13 2012, 10:40 PM)
I just would like to know if there is a wiring problem for the downlights (plastered ceiling), will it cause the energy saving bulbs lifespan to be much shorter than expected?

Hope to hear some advice. Thank you.
*
Wiring won't cause problem to your bulbs. Wiring problem cause your power trip and short.

Bulb problem is from quality of the bulb and the over voltage problem.
ozak
post May 15 2012, 10:07 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(weikee @ May 14 2012, 06:24 PM)
Only led can support dim function. And philips do control is wireless.
*
Not all led is dimable. Unless it state can be dim.
ozak
post May 18 2012, 05:51 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


My LED downlight CREE LR6 come already after many week wait. This model famous in western side and very reliable. Cost around RM120.

Spec is equavalent to 65w bulb, 10.5w, 575Lumens, 3yrs warranty, 35k life hr, 2700k and 120V. It is not suitable for here since our voltage is 240V.

user posted image

Use a step down transformer 240V-110V to fire up the downlight.

user posted image

This downlight is not really efficiency and not run exactly wattage as it claim 10.5W. Using kill a watt meter to check, actual run is 11.6W or almost 12W. Probably PF0.9.

user posted image

After sastified the brightness and confirm it working, start to open up inside and see what is inside there. So a AC-DC powersupply(driver) and inside is some LED. Check the voltage supply to the LED is 17VDC.

user posted image

Than takeout the powersupply and direct joint to a laptop adaptor which is a 16VDC. Now I can use 240V adaptor and direct joint to the CREE downlight. Running no problem with actual volatge is 16.36VDC.

user posted image

This post has been edited by ozak: Dec 18 2018, 09:24 AM
ozak
post May 19 2012, 10:17 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(aeiou228 @ May 19 2012, 09:44 PM)
My watt Meter's user manual stated that the meter itseft will consume 0.5w but not sure it was included or excluded in the display.
*
Maybe got offset already kua. Can't ask us to minus out every time read the data. If few day, that would accumulate a lot.
ozak
post May 21 2012, 09:59 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(KVReninem @ May 21 2012, 02:25 AM)
where do you get the watt meter? icon_rolleyes.gif
*
You can get it from trade zone.
ozak
post May 21 2012, 12:26 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(JinXXX @ May 21 2012, 10:24 AM)
what does the watt 0 meter say when u measure from the laptop adaptor ??

is it similar to their adaptor ? with the power correction/efficiency of .9 ?
*
I didn't measure the laptop adaptor after modify the light. As that day, the incoming volatge is 250V! I worried the watt meter will spoil. (Spoiled before)

I believe the watt usage will be higher than the original AC-DC board. As the laptop adaptor spec is 80w. Which you can power 7pcs of this downlight. Using the laptop adaptor to power 1pcs of this is overkill.

The downlight without the AC-DC board, I believe is 10.5W as it claim. But I would like to confirm again later on. The watt meter can't check the DC voltage to the LED. Got to use another way.
ozak
post May 23 2012, 04:35 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(ozak @ May 21 2012, 12:26 PM)
I didn't measure the laptop adaptor after modify the light. As that day, the incoming volatge is 250V! I worried the watt meter will spoil. (Spoiled before)

I believe the watt usage will be higher than the original AC-DC board. As the laptop adaptor spec is 80w. Which you can power 7pcs of this downlight. Using the laptop adaptor to power 1pcs of this is overkill.

The downlight without the AC-DC board, I believe is 10.5W as it claim. But I would like to confirm again later on. The watt meter can't check the DC voltage to the LED. Got to use another way.
*
Today try to check again. So takeout the original driver and direct joint to the laptop adaptor. To my suprise, the running watt from the laptop adaptor is lower than the driver itself. Just 5.8W!

Measure the LED watt consume. The meter show 0.179A. So the watt is 16.3VDC x 0.18A = 3W! Can't believe it that low. Something wrong with my culculation. tongue.gif Is that mean the original driver is consume half of this LED downlight? hmm.gif

user posted image

user posted image

This post has been edited by ozak: Dec 18 2018, 09:31 AM
ozak
post May 28 2012, 11:41 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(eastern @ May 28 2012, 11:32 AM)
Just curious,

1) How do we know the max. allowable wattage for the bulb / light socket prior to
    purchasing any bulb?
    (If there is no indication on the socket)

2) What will happen if the bulb we buy exceeds the max allowable wattage?

Thanks.
*
1) Check at your DB box MCB. Normally MCB for light is 10A or 15A. For 10A = 2400W. Do your calculation that your bulb add in total.

2) Your MCB trip.
ozak
post May 30 2012, 01:17 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(kucingfight @ May 30 2012, 01:09 PM)
My kitchen area was fitted with 10x GE energy saver, within 5months, 4bulb blew off. quality speaks for it self. Now i switched to philips, let's c how long they lasts.
*
Philip also is a crap. My early home using, is all philip. Now switch to hitachi. Running 2yrs average or 8khr before burn. It is between the spec as it claim.

If it blow off between each other continue, maybe cause by the high voltage. Sometime incoming is 250v.
ozak
post May 31 2012, 09:02 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(phoenix69 @ May 31 2012, 08:59 AM)
Nowadays T5 is the preferred flourescent light as it isthe newer and smaller model, but lighting wise T8 being bigger is arguably brighter.
*
But T8 brightness reduce after sometime.
ozak
post May 31 2012, 09:56 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(phoenix69 @ May 31 2012, 09:49 AM)
Never heard bout this wor.. blink.gif


Added on May 31, 2012, 9:49 am

"arguably"  tongue.gif


Added on May 31, 2012, 9:51 am

Was informed by the lighting sales person T8 darn durable.  flex.gif
*
My working place using alot of T8 light. Definitily can see the brightness reduce after a year. The reduce brightness make you feel dull. sad.gif
ozak
post May 31 2012, 11:02 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(leeyung @ May 31 2012, 11:01 AM)
Either T8 or T5, both will reduce brightness by time, aging effect for the fluorescent excitation of its intensity
*
No wonder I always have monday blue when seeing this light. sad.gif
ozak
post Jul 2 2012, 03:57 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(cyberp @ Jul 2 2012, 03:55 PM)
question - can i install normal flourescent fitting t5/t8 directly on plain plaster ceiling?

the electrician say not strong enough wor ...cannot screw properly.
i dun really like downlights cos at the end - it cost more to put in more light points and at the same times, u turn on more downlights.

2 T8 superbright x36w =72w
where i believe it needs ard 6 downlight to get the same brightness = 6x18w = 108w
*
It can support. You need board or plaster ceiling wall plug. Normal wall plug cannot. Can get it from ACE.
ozak
post Jul 3 2012, 11:30 PM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(svage98 @ Jul 3 2012, 04:40 PM)
If want to install light timer for porch and back yard is it better to use energy saving light? are all LED light energy saving?
*
Any light will do for a timer. For energy saving, LED is save more compare others. But come with a cost.
ozak
post Jul 18 2012, 10:07 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(weikee @ Jul 18 2012, 10:03 AM)
Got round, slimmer T5
*
It still have the floresent light look.
ozak
post Jul 18 2012, 10:33 AM

10k Club
********
All Stars
17,013 posts

Joined: Jan 2005


QUOTE(weikee @ Jul 18 2012, 10:17 AM)
Still the best, reliable, value for money lights.

If want something smaller use pll light.
*
I think he boring with the look. Just look for nice design cover or what ever designing light. But inside is flurosent light.

7 Pages < 1 2 3 4 5 > » Top
 

Change to:
| Lo-Fi Version
0.0413sec    0.52    7 queries    GZIP Disabled
Time is now: 26th November 2025 - 07:34 AM