question about lights

I have done lighting before but never cfl this is new to me. I understand the wiring side of it but not the required components. But much to my se prise I can get the job done for a tenner which is nice. I have the lights on a timer so no issue not having the switch. I can just use the existing light to light the tank for any little work
 
Hmmm... That sounds a bit unusual to me, but I'm on the other side of the Atlantic Ocean. From the pic in the listing, I can't really tell one way or the other.
 
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