Artika Horizon LED Ceiling Light Fixture - Page 1
Forum section: electronics / general

author: JavedABD
author_rank: Newbie
timestamp: July 23, 2023, 07:32:30 am
content: The light fixture started acting up and would turn off by itself and come back on by itself after a short time. Now it has stopped working alltogether. Does anyone know what may be wrong with it or how to fix it?

author: EPAIII
author_rank: Super Contributor
timestamp: July 23, 2023, 11:11:22 am
content: There's more than one "Artika Horizon LED Ceiling Light Fixture". So it is hard to talk about yours unless you specify which one you have.But:Made in ChinaSold by CostcoFancy features/low priceWhat did you expect?Who installed it? An electrician should be able to help? Or was it you?I suppose if you can speak Chinese, you could call the manufacturer. Better yet, take it back to Costco for a refund or exchange. Good luck.

author: DoublesAdvocate
author_rank: Newbie
timestamp: September 30, 2024, 05:41:31 am
content: Apologies for the necro but I believe the unit he's referring to is this one:https://www.costco.ca/artika-sunray-ultra-thin-led-panel-with-tunable-white-technology.product.100761543.htmlModel FLP14-SRC-C aka "Sunray"The reviews are riddled with people all describing the same experience of a short life and a permanent death.I had one given to me, wired it up, turned it on once or twice and then had basically the same thing happen except I heard the distinct sound of electronics being charred.I tore it down and found that a significant part of the driver board had indeed been vaporized. I'd love to try and resurrect this thing with a fresh PSU if anyone can determine what sort of voltage/amperage it may have been running at.

author: tom66
author_rank: Super Contributor
timestamp: September 30, 2024, 07:48:01 am
content: Axboom capacitorsNo obvious output voltage rating indication. Most likely the LED lamp is a high voltage string, and you would need to determine the voltage by either measuring one LED's forward voltage and counting the number of LEDs, or if you use a high voltage power supply you can connect it and increase the voltage until the LEDs glow at the desired intensity.You would need to use a constant current supply if you replaced this, with an output compliance voltage of at least the voltage you measured plus 10% or so to account for thermal shifts.

author: John B
author_rank: Frequent Contributor
timestamp: September 30, 2024, 08:45:10 pm
content: I modified some other costco lights, I think they were Feit brand.The forward voltage for the LED string was around 56V, so I was able to use a Meanwell 54V adjustable LED driver. Past that voltage, drivers are less common, more expensive, and there's added danger.The panels are worth experimenting if the Vf is low enough to roll your own drivers. You can make a dual channel, variable colour temp driver. Generally these lights just use a constant current circuit, then switch one, other or both LED strings to give only 3 colour combinations.

author: DoublesAdvocate
author_rank: Newbie
timestamp: September 30, 2024, 10:16:15 pm
content: Quote from: tom66 on September 30, 2024, 07:48:01 amI think I may have actually understated how shoddy the construction of this thing is, rather than having threads for the screws they've simply wedged them between 2 vertical metal plates.Thankfully when I tore it down I found that they've actually done the counting bit for me, I think what John B said about the constant current circuit with a switch for the 3 colour temp positions is dead on.Annoyingly my PSU only goes up to 30V IIRC.Quote from: John B on September 30, 2024, 08:45:10 pmI'll give those a look, they seem quite bulky so I'm guessing it would permanently remove the ability to have this thing ceiling mounted.