Review on Energy-Efficient LED 4Ft Shop Light - 40W, 4000K, Clear Lens, 4500LM, Non-Linkable, Ideal For Garage & Shop Ceilings, Pull Cord Chain, Plug-In, Replaces 4 Foot Fluorescent Tube. by Mario Haan

We used these lights as grow lights for starting tomatoes. They had the right range of kelvins and lumens according to the research we'd done. And they were cheaper than other lights being advertised for this purpose. They worked out perfectly. We suspended them over the seed trays with dog chains and adjusted the height as the plants grew. We started about 90 plants (not knowing how successful we were going to be) and ended with 87 huge beautiful plants! We started with two lights but bought an additional two when we potted into larger containers about a month before planting outdoors. With a couple weeks of almost daily conditioning they transitioned to regular day light no problem. After this I even started some marigolds and zinnias indoors for the fun of it and was also met with success. I can't wait to try some indoor winter gardening with these things.