Our NeoAir v2 is the control centre of our system and the touch screen is illuminated when 'pressed'. But the illumination turns off after 4 seconds in duration - giving completely inadequate time to absorb the information displayed and/or to input the complex sequence of key presses which are needed to achieve control. In practice, it is almost impossible to use. THIS IS A SIGNIFICANT PROBLEM OF ACCESSIBLITY FOR ANYONE, BUT PARTICULARLY FOR THOSE WHO MAY HAVE PARTIAL SIGHT OR WHO NEED A LITTLE TIME TO THINK! There may be other heatmiser controls with similar configurations, in which case I'd suggest introducing a new standard to maximise accessiblity and ease of use.