The Rania 2 IR Remote Alley when used with the rania IR Dimmers switches allows you to change the light level at any time from anywhere in the room from the palm of your hand. The big top button brightens lights smoothly to full intensity. The one underneath this within 3 seconds, it fades to off lights. The top small button brightens lights, while the one under this dims lights. Each group of four buttons dims a separate dimmers. The remote takes 2 AAA batteries (included).p > Specification General Colour