What you need:
electrical tape.
normal electric wire (with live, neutral, postive, wires.)
3amp plug.
bulb holder.
and of course your cfl bulb!
Step one:
take your electirc wire and cut it to the right length then strip both ends with a pair of scissors, finally tape the yellow wire up, you wont be needing that one.
Step two:
wire your plug to one end of your electric wire. Remember where not using the yellow and green wire so don't wire that one up. First unscrew the plug taking it to bits, then all you have to do is wire the blue wire to the left, and the brown wire to the right. Then screw it all back together easy.
Step three:
Now wire the other end to your bulb holder. unscrew the bulb holder so it's in 2 pieces, then slide the plasic casing over your wire,

then wire the brown and blue wires to the holes on either side of the bulb holder (very simliar to what you did with the plug.) These wires can go either way round unlike in the plug though.
Now you should have a wire with a plug on one end and a bulb holder on the other like so:
Step four:
Now for the tricky bit take your grow cab/box and once you have decided where you want your bulbs you need to drill a hole though the side of your cab big enough for the bulb to fit though but not the the bulb holder.
Finally:
push the bulb though the hole you have just made and then screw the bulb into the bulb holder. (the bulb should be on the inside and the the holder on the outside.)
Then just plug it in and your ready to go!
Hope that helps. (sorry about the bad pic quality best i could do.)