The Holman RGB Colour Bluetooth Garden Light Controller with Inbuilt Transformer is suitable for Holman RGB colour garden lights. The controller uses Bluetooth to control the lights by varying their intensity, turn them on and off and time their operation via your smartphone and the free iGardener app All Holman LIGHTSOURCE controllers can handle 60W of attached garden lights. Create your RGB colour garden lighting system with:1. Holman RGB Colour LIGHTSOURCE Controller2. Holman RGB Colour Garden Lights3. Holman 4-Pin Plug & Socket Cables *********** WARNING – Keep batteries out of reach of children. Product contains a Button or Coin cell battery. The Battery can cause severe or fatal injuries in 2 hours or less if it is swallowed or placed inside any part of the body. If suspected the battery has been swallowed or otherwise placed inside any part of the body, contact the Australian Poisons Information Centre on 13 11 26 immediately for 24/7 fast, expert advice. ***********