As of app v2.37.0 on iOS, it now works both for the HS200 and HS220. There is an LED Status toggle on the Device Settings page. Thanks KASA!

@Carl, thanks, here is the info on my two HS220 switches: HS220 Hardware v 3.0 Firmware v 1.0.3 iOS app version 2.36.0 Build 994 The ability to control the LED does not show up in the app, as shown...

651393 Carl wrote As of right now the only switches that support LED control are the HS220 and KS220M. Further expansion of this feature is being considered and should be added to other switches in...

That is weird, that setting doesn't show up for my HS220 dimmer switch in the iOS app

Like SWRegister, I too just put in 2 HS220 switches and the option to turn of the LED in the switch is not appearing in the KASA app. It is supposed to be on the Name/Icon page, right? HS220 Hardware...

TP-Link, please make this update! Yes, it seems to be available in the HS200 switch as another app can make this change. Yes, they do have the code written to change it in the very similar HS220...