12W 5730 White LED Annulus Light Emitting Diode SMD With Power
http://www.icstation.com/l18212w-5730-white-annulus-light-em…
ICStation abc DIY Kit Alphabetic Character A Without LED
http://www.icstation.com/ordericstation-alphabeticcharacter-…
DC-DC Buck Converter Step Down LM2596 Low Ripple Power Supply
http://www.icstation.com/buck-converter-step-down-lm2596-rip…
I've got a 12W unit similar to this in a walk in robe, bought it here:
http://www.aliexpress.com/item/1PC-high-brightness-5730smd-1…
For a corridor, it replaced a 60W incandescent in an oyster, and is brighter. Pic below:
For the bedrooms, we've found that the 18W version is equivalent to about a 100W halogen tube. The 12W LED wouldn't be bright enough for my bedroom. All of our open living areas have 24W units replacing 150W halogen tubes and they're about the same brightness too.
http://www.aliexpress.com/item/1PC-high-brightness-5730smd-1…
http://www.aliexpress.com/item/1PC-high-brightness-5730smd-2…
thanks man, very helpful reply, interested to try replace my old oysters
gotta give it a go with the 18w one sometime soon! :D
btw, was it hard to install?
My impression is, just cut, remove the old one
and then connect the 2 wires to the old outlet?
i wouldn't install this unless it's certified for australia and only if i had a sparky install it. for insurance and 'living' reasons. fears justified?
Yeah, I'd put the biggest one you can physically fit in.
Install was easy, I pulled the oyster off the ceiling, removed the old halogen fitting and fitted the retrofit board. The one I got actually has magnetic standoffs for the PCB and driver that just stick to the metal light housing, so you don't have to drill anything.
Re installation, that's correct, just make sure you get the polarity correct, otherwise you might get some weird behaviour from the driver.
Also, the good thing about the ones I ordered is that you can nest the different sizes within each other, so you could fit a 24+18+12 within the one light fitting if you really need the light output.
It's really no different from installing cheap LED bulbs purchased from eBay. Do it at your own risk, obviously.
[@brendanl]@Stitchy:
thanks guys, much appreciated, yes do understand its install at your own risk
Yes fear is definitely justified, insurance is usually a concern as it should really be installed by a certified electrician.
But personally I've some electrical wiring experience, will try 1 out first soon
Do you have to spend $50 to get the code to work?
Coupon code can be used for all items.
•Coupon Code: ICS05
•Discount Amount: USD5
•Max Use: 1
•Min Order: USD50
•Ended Date: 28th Feb, 2015
Just bought and installed 4 of these:-
http://www.aliexpress.com/item/24cm-25W-SMD5050-COB-Round-LE…
See my large review for lux comparisons.
Fills a room with lots of light.
I just purchased one of these so will see how it goes. Only have the one oyster light in the kitchen but would be nice to get some more light out of it.
Just bought and installed 4 of these
25W! How are you cooling them? I don't expect it will last long without some decent heat-sinking.
I wonder if thermal glue to a concrete-slab ceiling (no plaster) would be enough?
It comes on a 25cm aluminium plate and stands about 25mm off the fixtures 40cm round light steel base plate. So there is an air gap and plenty of metal to distribute the heat. So I hope that is enough to dissipate enough of the heat. Time will tell.
I'd be nervous. You could try taping a temp probe on the base, or using a Ir thermometer.
Of course it won't come with any spec's to calculate the junction temp.
Some vertical cooling fins might help.
@manic: I bought a 20W COB LED module to modify a desk lamp with. It comes attached to an aluminium plate but at the rated voltage it gets really hot, even with a recycled P4 Northbridge heatsink attached. I had to drop the voltage to make it usable.
Taped the temp probe to the back of the 24cm metal disk that the led's are attached. Temp was 30.1°c after 15 minutes. Room ambient Temp was 29.8°. Next I taped the probe to the inside of the plastic dome cover directly under the LED's to see if the enclosed temp directly under the LED's would make a difference, after 2 hours the Temperature read 29.9°,so any heat is being well dissipated.
Don't think heat is going to be an issue here. It was good to check it though as now I do not have to worry if I leave the light on for extended periods.
I am going to order some more of these for the remaining lights.
Sorry, but 0.3C/25W means a thermal resistance absurdly low. Something is very wrong.
What is the actual measured power consumption? Is anywhere on the plate hot to touch?
Plate was fairly warm after 2 hours but able to be lifted from its magnetic supports and held in my hands. The plastic "bowl" cover was even cooler and just slightly warm. All I can tell you is I taped the sensor end of the probe to the underside of the LED panel then to the inside of the bowl and got the readings as above. Having calibrated the sensor to other thermometers in the house and it appeared to be showing almost the same for room temperature. Maybe a point and shoot thermometer is worth a try,though for me having held the unit in my hands proves that the heat is not so high as to be a significant concern. My LED 15w and 9w down-lights run significantly hotter, too hot to touch when on for 2 hours. Power consumption flickers between 25w and 26w from my bench test before installation.
I was convinced enough to order another 4.
Sounds good. If not too hot to touch, it should be fine.
gday, anyone have any idea how bright is the first item:
12W 5730 White LED Annulus Light Emitting Diode SMD With Power?
am looking around for pictures
is it enough to light up an average room?