1.light controller 2.Capacitance and wireless touch technology 3.Visible color wheel, touched by finge rs 4.CE RoHS CONTACT USFeatures of light controller 1. Capacitance and wireless touch technology, no mechanical wear, overcoming the lifespan problems caused by Physical buttons.2. Visible color wheel, touched by finger, then What you see is What you get.3. Auto adaptation of 12-24V DC working ...