jonbro6956 January 11, 2008 Share January 11, 2008 Has anyone tried firing a 72" VHO bulb with one of these 220 watt ballast's that say that they will not fire a 72"? It makes no sense to me that a ballast that can fire up to 220watts and 8 feet of bulb cannot fire a 160 watt 6 foot bulb. I know that it probably does not work for a 72 becuase of the amount of power needed to fire it upon startup, but I am just curious. http://www.aquacave.com/detail.aspx?ID=85 Link to comment Share on other sites More sharing options...
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