# Finally solved ripple control side effects, no more sudden brightness on fibaro dimmer2 **URL:** \ **Category:** Ideas & Suggestions\ **Created:** [November 3, 2019, 9:43pm UTC](https://community.homey.app/t/finally-solved-ripple-control-side-effects-no-more-sudden-brightness-on-fibaro-dimmer2/20226 "2019-11-03T21:43:53Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![Jo\_San](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jo_san/32/3732_2.png) [@Jo\_San](https://community.homey.app/u/Jo_San)\ **Post date:** [November 3, 2019, 9:43pm UTC](https://community.homey.app/t/finally-solved-ripple-control-side-effects-no-more-sudden-brightness-on-fibaro-dimmer2/20226/1 "2019-11-03T21:43:53Z")
Maybe others can benefit from this as well. For 3 months I have been struggling with the side effects of ripple control signals (in Dutch “toonfrequent”), causing the LEDS on my Fibaro 2 dimmers to brighten at fixed times each night (about 5x each night). It drove me crazy. I finally found out this weekend that there is a setting (parameter 38) that is meant to prevent flickering of LEDs, but causes sudden brightness in 2-wire setups in combination with ripple control. Setting this parameter to 0 solved it. (raw configuration: “38,2,0;”). --- _[View the full topic](https://community.homey.app/t/finally-solved-ripple-control-side-effects-no-more-sudden-brightness-on-fibaro-dimmer2/20226)._