Check this out.
Warning: Attempt the below article at your own risk. The Planted Tank and its affliates take no responsiblity for any damage/injuries that might occur. This article only works with an electronic ballast. It does not work with a magnetic ballast. Some aquarists seem to have unlimited...
www.plantedtank.net
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Two of these ODNO T8 bulbs will make more light than four 1 1/4" T12 bulbs in the aforementioned shop lights.
How does it work?
Instead of hooking up multiple bulbs to the one ballast we can hook up just one bulb with all of the outputs together. "
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With the higher output, the bulbs can be further away.
More plants , getting more light, in the existing space.
Could be a sly way to stealthily up your game.
More than ten years ago, I wired a 'two-bulb' ballast into a single lamp fixture, in our upstairs bathroom. She is still going strong.