I don't think there is anything wrong with them, but why not use the correct ballast, the difference in electricity is negligible. Most electronic ballasts under drive HQI bulbs, it may not matter for you because you have more than enough light to offset the drop in par from under driving the halides.
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Jack
No One has ever been seriously injured by using the search function.
Alcohol, Tobacco and Firearms should be a convenience store, not a government agency.
Current Tank Info: Reefing the Pentagon.
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