... within 100 meters Remote controller function: Button A:color-changing mode Button B:speed+ Button C:speed - Button ... built-in controller, par56 change colors automatically3, Single color: turn on/off the powerAdvantages:1, Certificate: CE ... ROHS 2, No mercury and lead pollution, no UV and IR Radiation.3, Low heat,low degradation,3 ... . 5, Easy installation, maintenance free. led color changing pool light