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jjsmd
New Member

15 Posts

Posted - 09/11/2019 :  09:14:35 AM  Show Profile  Reply with Quote
Hi I installed several of these LED panels

Lithonia CPX - 2x2 Ceiling LED Panel Light - 3200 Lumens - 30 Watt

the specs claim they are dimmable (0-10V dimming driver, dims to 10%. )

When I used a 2477D Insteon switch the lights do not dim they just flash and turn off, Is there an Insteon dimmer switch that would work?
any help appreciated.

BLH
Advanced Member

6137 Posts

Posted - 09/11/2019 :  3:14:37 PM  Show Profile  Reply with Quote
The panel needs full AC line voltage all the time when On.
Then a 0-10DC dimming control voltage on its control connection.

Yours does have a 0-10VDC dimmer voltage input? In my search for the LED light. It was not clear the light has the input standard or needed a separate driver with the 0-10DV input.

Are you using the 2477D to try and dim it with its AC input. That will not work.

You need a 0-10VDC control signal. The Insteon 2475DA2 0-10VDC dimmer is is what you would need. It has a relay output to turn On and Off the power to the fixture and a 0-10VDC dimmer control voltage. There is a manual link on the page if you want to see if it would be suitable for your needs.

https://www.smarthome.com/insteon-2475da2-0-10vdc-ballast-dimmer-dual-band.html

Edited by - BLH on 09/11/2019 3:31:07 PM
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jjsmd
New Member

15 Posts

Posted - 09/12/2019 :  01:49:14 AM  Show Profile  Reply with Quote
Thank you for the reply, That seems to be exactly what I need

much appreciated.
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BLH
Advanced Member

6137 Posts

Posted - 09/12/2019 :  03:19:42 AM  Show Profile  Reply with Quote
You are welcome.
It gets wired directly to the light and supplied power all the time to its AC input. Then you can wire its On Off relay output to the lights AC input and the 0-10VDC to its control input.

You could even still use the 2477D. With Line and Neutral connected, Load capped off. Then linked to the 2475da2 to control it.
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