3 finger double tap turns off speech but not voiceover.
I also don't think that screen curtain saves any battery.
If you want to make your screen brighter, just open control center and put it 
up.


Sent from my iPhone

> On Feb 10, 2019, at 9:05 AM, Brian K. Lingard <[email protected]> wrote:
> 
> Dear Harry & List:
> Not aware using screen curtain saves battery. It blacks out the screen by 
> setting entire screen to black, this uses battery power.
> 
> You may save battery a good bit by saying Hey Siri make screen darkest. If 
> someone sighted wants to use the phone, say hey Siri make screen brightest as 
> well as hey Siri turn voiceover off.
> When they are finished, turn voiceover on with hey Siri turn voiceover on or 
> do three-finger double tap.
> You can darken & Brighten the screen in 25% increments with hey Siri make 
> screen darker or brighter.
> 
> Turning off voiceover lets the phone respond to single taaps, not double with 
> voiceover on. Sighted people never get used to double tapping.
> Brian K. Lingard VE3YI, Ab2JI, B.. A., C. T. M.
> 
> From: 'Harry Bell' via VIPhone [mailto:[email protected]] 
> Sent: February 5, 2019 6:00 AM
> To: Abridged Recipients <[email protected]>
> Subject: Screen curtain and battery?
> 
> Does the screen curtain save battery now on all iPhone models running iOS 12?
> Thanks
> Harry  
> 
> 
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