Emergency Light, Auto switch

RozPart – Emergency Light, is not a regular front screen illuminator.
Its switch on automatically when DC & USB power is off.
and switch off automatically when DC & USB power is back on.

I developed it for my kitchen tablet, that normally displays the family photo album,
but in the winter we have occasionally an electrical blackouts,
Normally the tablet switches to "save mode" and the screen went dark.
I program it to open a full white screen, so it will be a really automatic Emergency Light.