Have a spare 660nm led when original driver went kapoot . Bought a new driver from sim lim and came up with this set up .A crude design but saves space in sump.
Height can be adjusted with cut to length pipes
Box dimension is 20cm length and 15cm wide , height to be adjusted to water level .
$100 for meterial and some labour . Add $10 for delivery and cut to size pipe height .
driver is brand new but I'll give 3month warranty .
You will need an air pump for it to work bytheway .