Mine are 8 footers. High output, "0" degree ballasts. Four in a 24X32 shop. As I age, it still isn't enough light. Thinking of adding two more. But, the secret to more florescent light is to get the High output tubes and the "0" degree ballasts. JMO
'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton
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