Backlight Dimmer Flipswitch cydia tweak allows you to quickly dim your device backlight down to 30% or restore it to 80% without having to use any slider.
If you turn this toggle on (either via SBProfiles as part of one of your profile or via Activator), it will boost the backlight brightness up to 80%. If you turn it off, it will reduce it down to 30%.
This package requires Flipswitch to be installed before it can be used. It will not add any new icons to Springboard.
Donate to be able to customise the On/Off brightness levels.