giesemann MegaChrome 250W single ended bulb

[Gaspare]

I have been trying to determine what is the correct ballest to run giesemann MegaChrome 250W single ended bulb.  I have a standard 250W metal halide ballast (M58 I think).  Has anyone used this combination?  If so what has your experience been in terms of coral colour and bulb life?  Thank you.

[johnrt]

Take a look at:
   http://www.manhattanreefs.com/lighting
and select either the tab "Lamp and Ballast" or the "one Lamp" tab. You will get a great deal of information about bulb / ballast combinations.

John T

[Gaspare]

Thank you for the link.  It was very helpfull and interesting.