I am trying to replace an old celing light and need some desperate advice, being a not very good DIY person!! Out of the ceiling are a group of red wires (3 together), 2x black wires (together) and one black wire on its own, but with a red band around it near to the end (?), and then the earth wire. The new light I am trying to put up has a blue, brown and earth wire coming from it. The light switch is a dimmer... Help!! Any advice on how I should connect these up would be appreciated. Thanks