What Lighting To Use On My 535 Litre Tank

[Richard22b]

I've just got a large tank and need to change the current faulty lighting.

I am unsure what to go for. All i can seem to find is large lighting units that go on top of your tank.
I need something that can be screwed into the current hood.

Tank depth is 60cm and lighting needs to be 60inches long

 

[england]

These are very good, i have three with my 566 litre tank but usually only use one bulb,

 

[Richard22b]

How have you got yours setup?
any chance you can post a pic so i can get some ideas