Nicrew is affordable and good, I like their lighting.
For "medium" id suggest either the Nicrew Planted Plus, Nicrew Classic Plus, or Nicrew SkyLED Plus (which you can dim for as it can be high light full brightness). Of those, I love my SkyLED Plus lights, they do well.
But, if you can get JC&P full spectrum, I love those best. In built timers, and they do really well for plants, even medium light. On par with Nicrew for price, but doesn't seem like they're widely available everywhere.
Here are my two 20 gallon longs.
First has a 30" JC&P full spectrum on full brightness with a layer of water lettuce and vals up top
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Second is a Nicrew SkyLED Plus with a dense layer of duckweed and water lettuce
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Can get an idea of how the lighting looks on the tanks themselves.
The JC&P does well for my red Ozelot. New leaves grow in a deep wine red under that light.
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