In article ,
Harry Bloomfield writes:
taylerlee pretended :
The live is attached to left side of
ballast. There are two wires on each of the end terminals of the strip
light. For description purposes I will say wire 1 from the left side
terminal is connected to the left side of the ballast in the connector
just above the incoming live. Wire 2 from the left strip lamp terminal
is connected to the right side of the ballast. Wire 1 from the right
side strip light terminal is connected to the starter, wire 2 from that
side is connected to the incomming neutral.

By default there should be a diagram on the ballast.

The usual circuit is:-

1. Live to ballast.
2. Other connection on ballast to one connection, at one end of tube.
3. Neutral to a connection at opposite end of tube.
4. Starter should be connected between the two remaining wires, which
should be one from each end of the tube.

There's a picture he
http://members.misty.com/don/f-lamp.html#wd0

Note that being a US site (120V mains), most of the diagrams
are not relevant to the UK, but that first one is correct.

--
Andrew Gabriel