... mode is knob-operated control, you could adjust light to the appropriate lighting brightness in accordance with your actual need. ... 2A10.Power output: 24WDirection for use 1. Connect the load wire at first, following by the power wire; 2. Adopt rotary button, ... it to the far right,the brightness is greatest.Rotate button to the left,brightness will be darker,when you rotate it to the far left,the light ...