# Fibaro dimmer 2 settings

**URL:** <https://community.homey.app/t/fibaro-dimmer-2-settings/3311>\
**Category:** Devices\
**Created:** [October 26, 2018, 4:24pm UTC](https://community.homey.app/t/fibaro-dimmer-2-settings/3311 "2018-10-26T16:24:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Mikron](https://avatars.discourse-cdn.com/v4/letter/m/b19c9b/32.png) [@Mikron](https://community.homey.app/u/Mikron)\
**Post date:** [October 26, 2018, 4:24pm UTC](https://community.homey.app/t/fibaro-dimmer-2-settings/3311/1 "2018-10-26T16:24:32Z")

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I have just installed a fibaro dimmer 2 with led lamp. A Fibaro bypass 2 is also installed because I had previous problems with the lamp was little on when it was turned off, but that has been resolved now.

The problem I have now is that the LED flickers when it is in use. I read that you can try changing parameter 20 to somewhere between 134-140 to get rid of flicker.

I wonder how I change this in Homey on this device? Please help.

(Parameter (20) is that adjusts the impuls lenght applied to the bulbs).

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**Author:** ![johan\_bendz](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/johan_bendz/32/10344_2.png) [@johan\_bendz](https://community.homey.app/u/johan_bendz)\
**Post date:** [October 26, 2018, 7:33pm UTC](https://community.homey.app/t/fibaro-dimmer-2-settings/3311/2 "2018-10-26T19:33:28Z")

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Parameters are set and changed in the settings menu on the device (the tool icon).

Start by forcing the dimmer to autocalibrate. Parameter 13,

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**Author:** ![danone](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/danone/32/115743_2.png) [@danone](https://community.homey.app/u/danone)\
**Post date:** [October 26, 2018, 7:49pm UTC](https://community.homey.app/t/fibaro-dimmer-2-settings/3311/3 "2018-10-26T19:49:51Z")

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Parameter 20 refers to the type of switch connected to the dimmer (momentary switch, toggle or roller blind switch)  
As above, try “autocalibration with bypass”

 ![28%20am](https://us1.discourse-cdn.com/flex025/uploads/athom/original/2X/9/94af85a20c728ef0079ed8533d75615aaed4c657.png)

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**Author:** ![Mikron](https://avatars.discourse-cdn.com/v4/letter/m/b19c9b/32.png) [@Mikron](https://community.homey.app/u/Mikron)\
**Post date:** [October 30, 2018, 4:31pm UTC](https://community.homey.app/t/fibaro-dimmer-2-settings/3311/4 "2018-10-30T16:31:39Z")

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I have now tested to autocalibrate both with and without bypass and the light is still flicker.

Is it ok to have two led lamps on 3.5W each on one bypass?

![lights-bypass](https://us1.discourse-cdn.com/flex025/uploads/athom/original/2X/a/a331929104174316f5fe350efea4b8fe6a8bcfb9.png)

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**Author:** ![Rocodamelshekima](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rocodamelshekima/32/8209_2.png) [@Rocodamelshekima](https://community.homey.app/u/Rocodamelshekima)\
**Post date:** [October 30, 2018, 4:47pm UTC](https://community.homey.app/t/fibaro-dimmer-2-settings/3311/5 "2018-10-30T16:47:45Z")

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> [@Mikron](#):
>
> Is it ok to have two led lamps on 3.5W each on one bypass?

Yeah, that’s no problem. [Here is some more info](https://www.vesternet.com/resources/application-notes/apnt-115/) for the Dimmer2 and the bypass2 in combination with leds.