double ended metal halide?

[ihavebadluck]

do you need to have a certain kind of mh ballast to run these type of bulbs or can you use the same ballast you use on a single ended bulbs? and what is your opinion about these type of bulbs vs. single?

thanks in advance.

 

[ihavebadluck]

bump

 

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http://reefkeeping.com/issues/2007-03/sj/index.php