Dimmable LED

maron6977 · #1 02-28-2013, 09:06 PM

I just purchased cheap led light (55x3w) w/sunrise, sunset & lunar cycle .
To my disappointment the moonlights don't work at 10% & 5% setting . They do work at all the other settings (100%,50%,25%). Now there is no manual dimmer or a setting on the LCD display to adjust , everything is preprogrammed .
My question: Is there anyway to check what is wrong ?
The company doesn't seem to stand behind their product or even let me know if it is broken or they haven't perfected their product yet !

Do LED's need so much power before they start to illuminate ???

Any info would be helpful or point me in the right direction .
Thanks

The Grizz · #2 02-28-2013, 10:47 PM

Sounds like its just in there programming, nothing really broken. My Profilux controller only goes don't to 10% on the blues as well. Manual dimmers can take them down lower. Again that what you need up with when you go to the cheaper made LEDs.

ScubaSteve · #3 02-28-2013, 10:52 PM

It actually sounds like the drivers. Depending on the driver used, the minimum illumination level is typically 10% as the driver behaviour becomes non-linear below 10%. Few drivers actually dim all the way to zero.

So, nothing is wrong. It's just the nature of the beast.

The Grizz · #4 02-28-2013, 10:53 PM

Never thought of the drivers, could be that too.

maron6977 · #5 02-28-2013, 11:07 PM

So does that mean driver built into complete module or are they seperate ? Or every manufacturer is different ?
I'd be happy if they could do 10%

maron6977 · #6 02-28-2013, 11:10 PM

Oh , with no 10% & no 5% that means no moonlights approx. 7 days a month !!!

The Grizz · #7 02-28-2013, 11:38 PM

What brand of LEDs are they & maybe a pic so we know what your dealing with.

My SOL does the same thing with the moon phases, some days you can hardly see them on.

maron6977 · #8 03-01-2013, 03:41 AM

The light is made by Twilight Group Co.
What do you want to see a pic of the housing top & bottom or the moonlights not lit up ??? Lol

maron6977 · #9 03-01-2013, 02:20 PM

Finally got an answer from the manufacturer : they said the moonlights don't work below 15% . So I asked if it's possible to reprogram . No answer yet , unless someone here might know ???

sirruckus · #10 03-01-2013, 06:48 PM

its probably because of the driver - you cant re program that. for a cheap LED light you cant expect much.