This set of four mini light bases is so versatile you'll want to get several sets! Each light has 10 LED bulbs that can go through 16 static color modes and 4 dynamic lighting modes, including flash, strobe, fade and smooth. Each base has its own remote control so you can control the light from up to 30 feet away. You can control multiple lights with one controller, or control only one light with each one. Each mini base is powered by 3 AAA batteries (not included) and will stay lit for 10 - 12 hours on one set of batteries. Each light is 2.75" in diameter and measures 1.1" thick. Perfect for holidays, parties, outdoor lighting, centerpieces and more. An added bonus, these are water resistant, so you can use them outdoors and in settings where they may get wet!