Flicker only when 2 switches are on

[toptierweb]

In a garage I have a dedicated 15 Amp 14/2 line going to a 2 gang wall switch box where 2 Insteon Dimmer Switches are.  not i3 paddles.  One controls 6 led surface mount panel lights in the room and the other controls 4 wall sconces outside with led bulbs in them.  both are in dimmer mode.  When Both of them are on the outside bulbs flicker.  If I turn off the inside lights the flicker stops.  If I remove either switch and wire the load directly to the line with a wire nut there is no flicker. 

Any ideas?  I have tried all i know to try

[atmarosi]

https://shop.insteon.com/products/led-flicker-glow-eliminator?srsltid=AfmBOopOitXjjLRMMOtmR6bSOykiQ4h5NGuyzQY4OngE1IH9zowHPqHB
 

try these 

[toptierweb]

6 minutes ago, atmarosi said:

https://shop.insteon.com/products/led-flicker-glow-eliminator?srsltid=AfmBOopOitXjjLRMMOtmR6bSOykiQ4h5NGuyzQY4OngE1IH9zowHPqHB
 

try these 

I actually just realized the leds inside are 300W  50w a piece X 6 so the dimmer switch is overloaded.  If i change it back to on / off do i get the higher limit of the on/off switch?

[paulbates]

Yes, and you remove the triac dimmer from the equation

It's worth a try and easy to do.

[toptierweb]

10 hours ago, paulbates said:

Yes, and you remove the triac dimmer from the equation

It's worth a try and easy to do.

That seems to have fixed the flicker just changing the inside switch that was overloaded mode to relay instead of dimmer.  And it even still does a ramp rate to turn on and off which is very nice.

[paulbates]

2 hours ago, toptierweb said:

That seems to have fixed the flicker just changing the inside switch that was overloaded mode to relay instead of dimmer.  And it even still does a ramp rate to turn on and off which is very nice.

Hmmm. Are you hearing a little click sound when it switches? If no, it's still a dimmer. 

When you change the setting to relay in iox, you have to push the button to the left of the setting for it to take.

[toptierweb]

3 hours ago, paulbates said:

Hmmm. Are you hearing a little click sound when it switches? If no, it's still a dimmer. 

When you change the setting to relay in iox, you have to push the button to the left of the setting for it to take.

Ok actually what I did was set the on level to 90% inside the garage and that seems to have fixed the dimming of the exterior sconces.

[paulbates]

9 hours ago, toptierweb said:

Ok actually what I did was set the on level to 90% inside the garage and that seems to have fixed the dimming of the exterior sconces.

If the load of the lights, in watts, is higher than the switch rating, the switch likely won't last

[Brian H]

Have not seen it lately. We use to have LED bulbs that had a repetitive current spike and in rush current at startup.  Manufactures gave us a figure to calculate the wattage we should use when we added up wastage to see if we where maybe overloading a dimmer switch. I remember a few said use 80 watts. 😀

[larryllix]

On 3/16/2025 at 12:01 AM, toptierweb said:

I actually just realized the leds inside are 300W  50w a piece X 6 so the dimmer switch is overloaded.  If i change it back to on / off do i get the higher limit of the on/off switch?

Is that 300 Watts equivalent or 300 Watts actual? 300 Watts of LED lighting is a lot of light and not very likely. The LED companies love to exaggerate their luminescence values.

Maybe the lumen ratings are visible on the fixtures?

[toptierweb]

1 hour ago, larryllix said:

Is that 300 Watts equivalent or 300 Watts actual? 300 Watts of LED lighting is a lot of light and not very likely. The LED companies love to exaggerate their luminescence values.

Maybe the lumen ratings are visible on the fixtures?

these are the fixtures.  but I have an older model

https://www.homedepot.com/p/Commercial-Electric-1-ft-x-4-ft-4000-Lumens-Dimmable-White-Integrated-LED-Flat-Panel-Ceiling-Flush-Mount-Fixture-with-Selectable-5CCT-FP1X4-6WY-WH-HDT/320358738

[Guy Lavoie]

I just looked at the box of a 800 lumens LED bulb, and it draws 9 watts. So 50 actual watts certainly sounds plausible for 4000 lumens.

[toptierweb]

19 minutes ago, Guy Lavoie said:

I just looked at the box of a 800 lumens LED bulb, and it draws 9 watts. So 50 actual watts certainly sounds plausible for 4000 lumens.

Yes its in my garage so I wanted task lighting.

When the dimmer is at 90% no flicker but if its going to overload the switch I will probably put it to relay mode.  Although insteon gave me this response to this question for an embedded device that says 50W LED max and I have 80Watts on it

 

Question:

One other question is I am using an embedded device to turn on some recessed led  canless lights.  there are 8 drawing 8.5 watts but I noticed on the device it says only 50 watts led or 200 watt regular.  Is that ok or do I need to split the feed and use 2 of the embedded devices? Or maybe you have another solution?

 

Response:

It is mainly for the potential inrush current of LED's that can be 5 times higher wattage / current that their rated values when they first turn On.  I have to officially tell you that it is over the rating but you will likely be fine.  If you add a little ramp rate to the device so it takes a second or two to turn On, it can be helpful.

[larryllix]

3 hours ago, toptierweb said:

these are the fixtures.  but I have an older model

https://www.homedepot.com/p/Commercial-Electric-1-ft-x-4-ft-4000-Lumens-Dimmable-White-Integrated-LED-Flat-Panel-Ceiling-Flush-Mount-Fixture-with-Selectable-5CCT-FP1X4-6WY-WH-HDT/320358738

The 4000 lumen tends to line up up with the 50W actual. The size is pretty compact for that size though!

Awesome light with selectable colour temperatures!
Having had lots of RGBCW bulbs the 50 Watts may be the total LED draw but not all LEDs may ever be on at the same time. Perhaps only with one end of the colour spectrum.