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 Led driver replacement

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ozak
post Mar 6 2019, 01:31 PM

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QUOTE(sgpdsmss @ Mar 6 2019, 01:04 PM)
how to know my surface mount LED running how many DC voltage? calculate how many pcs of the LED?

thanks ...
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As slimey said, the casing should have some spec wrote on it.

If don't have, need a multimeter to check from the driver wire to the led.
Jane's
post Mar 6 2019, 01:33 PM

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QUOTE(Turtlez84 @ Mar 6 2019, 10:36 AM)
Wah Ozak you seem like a pro. How about brands like this? Philips. Its 10watts and 6500k but didnt mention whether it is how many lumens. Need about 30 units of this. 4 for each hall and rooms. You think its bright enough? Can last long? Cause nowadays they said no longer use the buld and reflector type already.

https://www.lazada.com.my/products/12pcs-x-...0927f678214b34d
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Hi there, it is about 900 lumens. This light is quite bright and has a high efficacy (lm/W). The newer Philips downlights are 17W and have slightly higher lumen only, which means a lower efficacy.

I use 2 of these for a small bedroom, and 2 for my porch. Very bright and uniform light throw, definitely much better than the China lights.
sgpdsmss
post Mar 6 2019, 01:46 PM

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QUOTE(slimey @ Mar 6 2019, 01:14 PM)
Not written on the led light?
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nope...just small small LEDs round around the casing..

QUOTE(ozak @ Mar 6 2019, 01:31 PM)
As slimey said, the casing should have some spec wrote on it.

If don't have, need a multimeter to check from the driver wire to the led.
*
no have ...
multimeter set to measure voltage DC output from the driver?
ozak
post Mar 6 2019, 01:50 PM

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QUOTE(sgpdsmss @ Mar 6 2019, 01:46 PM)
nope...just small small LEDs round around the casing..
no have ...
multimeter set to measure voltage DC output from the driver?
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Yes.

Driver wire to Led only have 2 wire. Each probe to 1 wire. Or probe on the connector at the led side. Meter set to DC.
ozak
post Mar 6 2019, 01:54 PM

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QUOTE(Jane's @ Mar 6 2019, 01:33 PM)
Hi there, it is about 900 lumens. This light is quite bright and has a high efficacy (lm/W). The newer Philips downlights are 17W and have slightly higher lumen only, which means a lower efficacy.

I use 2 of these for a small bedroom, and 2 for my porch. Very bright and uniform light throw, definitely much better than the China lights.
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Without the lumens number, it is hard to tell the brightness. Very subjective.

I said that lenglui is pretty. But you said like auntie. How ?

I said the color is red. But you see it is pink. How ?

You said bright, my imagination is like sun. Too bright. How ?


Jane's
post Mar 7 2019, 05:29 PM

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QUOTE(ozak @ Mar 6 2019, 01:54 PM)
Without the lumens number, it is hard to tell the brightness. Very subjective.

I said that lenglui is pretty. But you said like auntie. How ?

I said the color is red. But you see it is pink. How ?

You said bright, my imagination is like sun. Too bright. How ?
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By lumens you mean the Philips 59203 lumens? I did mention it is at 900.

From my experience, those China lights typically at 18W is rated at 9xx lumens. For those such as Philips or LEDvance (Osram), they're good for 900~950 lumens at 10W. That's an improved efficiency or efficacy by quite a margin.

More than that, the light throw also matters. The diffuser of the China branded lights actually causes a high loss of light diffused through versus better diffuser designs of those branded lights.

Use a lux meter to measure the light at a few areas around your room after installation, the simplest lux meter you can find is your phone. Install a China branded light and measure it, then repeat the same with a better light. From there you can tell which light has a better light distribution and light throw. There are guides to comfortable lux levels for different settings, typically ranging from 100~200 for homes. Just looking at the lumens written on the box can sometimes be misleading.

Lumens = measure of light output
Lux = measure of lumens/area

There are some chinese branded lights that are really bright, but the trade-off is a low lifespan, or the brightness decreases lower than the 70% threshold when new very quickly. But from experience, just by installing and comparing one can tell the difference.

There are also chinese-branded lights that are equivalent or on par with the European brands such as Opple, FSL (but at a premium over regular chinese-branded lights). Even the European brands manufacture their lights in China.
JasonTheGreat
post Jun 13 2020, 08:25 AM

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Hi all
I can’t seem to find a comparable spec to my driver. Any recommendations? 1 year can blow 6 times. But managed to reduce to about 1x after wrapping this with plastic for use on toilet ceiling


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cablesguy
post Jun 13 2020, 09:21 PM

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Guys WTA,

Sorry sidetrack and tumpang thread abit, since talking abt Led drivers biggrin.gif , anyone here using these Philips Led lights, thinking of replacing most of my downlights to these, my current China made ones seem to last on average a year at most, its mostly the drivers giving problems.

Thanks

This post has been edited by cablesguy: Jun 13 2020, 09:24 PM
sgpdsmss
post Jun 14 2020, 08:45 AM

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QUOTE(JasonTheGreat @ Jun 13 2020, 08:25 AM)
Hi all
I can’t seem to find a comparable spec to my driver. Any recommendations? 1 year can blow 6 times. But managed to reduce to about 1x after wrapping this with plastic for use on toilet ceiling
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how many w for your light ?
the driver support from 13w~18w
JasonTheGreat
post Jun 14 2020, 07:37 PM

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QUOTE(sgpdsmss @ Jun 14 2020, 08:45 AM)
how many w for your light ?
the driver support from 13w~18w
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18W. Not sure why 1 year can blow a few.
Decided to try to order from China. Hopefully gives longer life at cheaper price.

https://m.intl.taobao.com/detail/detail.htm...42.608245840791
sgpdsmss
post Jun 14 2020, 10:35 PM

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QUOTE(JasonTheGreat @ Jun 14 2020, 07:37 PM)
18W. Not sure why 1 year can blow a few.
Decided to try to order from China. Hopefully gives longer life at cheaper price.

https://m.intl.taobao.com/detail/detail.htm...42.608245840791
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no need order from taobao order from shopee can already ..
ozak
post Jun 15 2020, 08:40 AM

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QUOTE(JasonTheGreat @ Jun 14 2020, 07:37 PM)
18W. Not sure why 1 year can blow a few.
Decided to try to order from China. Hopefully gives longer life at cheaper price.

https://m.intl.taobao.com/detail/detail.htm...42.608245840791
*
Your toilet given up a lot of moisture that cause the driver condense of water. This might be the reason cause the driver spoil.

You might consider getting another LED light that is seal off the driver. (Enclose together with the driver inside and seal off. It have somekind of alloy heatsink at behind.

Or place away from the driver away from the top center ceiling.

Or bath less hot water. Where the hot steam create this problem. tongue.gif
JasonTheGreat
post Jun 15 2020, 09:09 AM

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QUOTE(sgpdsmss @ Jun 14 2020, 10:35 PM)
no need order  from  taobao order from  shopee can  already ..
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I saw those at Shopee. The PCB is smaller and looked cramped. So I bought the full size one from China.

About Rm8 each driver prorated including delivery for 5units. Only thing is I need to desolder and change the cable to NSB’s connector (or otherwise use a generic connector through the cable)
sgpdsmss
post Jun 15 2020, 10:11 AM

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QUOTE(JasonTheGreat @ Jun 15 2020, 09:09 AM)
I saw those at Shopee. The PCB is smaller and looked cramped. So I bought the full size one from China.

About Rm8 each driver prorated including delivery for 5units. Only thing is I need to desolder and change the cable to NSB’s connector (or otherwise use a generic connector through the cable)
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after received post photo here for the driver look ...

thanks..
JasonTheGreat
post Jun 16 2020, 10:22 AM

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QUOTE(sgpdsmss @ Jun 15 2020, 10:11 AM)
after received post photo here for the driver look ...

thanks..
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Sure. will share when i received it.

Also does anyone know what drives the color of LED, the 6000 or 4000?
Was it the driver or the LED?

JasonTheGreat
post Jun 22 2020, 01:49 PM

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This post has been edited by JasonTheGreat: Jun 22 2020, 02:28 PM
selinix
post Aug 10 2020, 10:19 PM

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Anyone know where to find a driver as such for 24watt surface LED.



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