Photo: Paul Rankin for BobVila.com

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I was already a fan of the original Auk Mini after testing it for our guide to the best grow lights , so I was curious whether the new Auk Mini 2 actually improved on it or simply gave it a facelift. I tested the Espresso/Walnut model on the same kitchen counter where I used the original: an area that receives virtually no natural light. That meant the plants were entirely dependent on the Mini 2’s built-in grow light.…