Product review: W Led Plant Grow light with Clip and Flexible Neck Desk Lamp

In attached video you can see a 10 day dairy of four cucumber seedlings - one was growing in a sunny window, one under a 15W grow bulb, one under 12W grow bulb, and finally one using the 5W grow lamp offered in this listing. The plant growing in a sunny window in April in New England does not have ideal conditions, this is why we have been using grow lamps for our seedlings for several years. You can that the plant in the window is the smallest at the end of 10 days. All grow lamps were turned on for 14 hours a day using a timer (off at night). I expected the plant under 5W plant to be smaller than a the plants under the stronger lamps but as you see in the photos that is not the case. The plant under the 5W plant is bigger and has larger more robust looking leaves.

In attempt to satisfy my curiosity why the plant under this grow lamp did so well I used the lux meter (which measures light intensity) to compare the three grow bulbs. Turns that that 5W registered the highest lux reading, 12W lamp generated the next highest reading and 15w lamp had the lowest reading. The area that 5W lamp lights up is small, it is good for one plant. 12W and 15W bulbs are larger, we can fit 6 seedlings under each. But the Watts reading does not tell the whole story, turns out that our 15W bulb is just less efficient - it uses more electricity to generate less light.

As a final thought I want to share a tip I learned from several years of experience of using grow bulbs: having a fixture with a goose neck is very important. If the plant gets too close to the bulb it can be burned, so I adjust the neck as the plant grows. This grow lamp has an excellent neck. The neck is 18" long and is very flexible and stays exactly where I put it. The clip opens easily and the jaws open 2.5" wide. The cord has in-line on/off switch and a regular plug.

This grow lamp is provided by Nanu Nanu. As you see in the photo diary, the plant under this lamp did really well.

http://amzn.to/1SUSMZc

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