On Wed 2019-12-25 12:16:36, Guido Günther wrote: > Otherwise there's a hardly noticeable glow even with brightness 0. Also turning > off the regulator can save additional power. I guess it is of too low intensity to be used, for example in completely dark room? Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html