HydrofarmAgrobrite FLC32D Compact, 32 Watt, 6400K Fluorescent Spiral Grow Lamp, 1 Count (Pack of 1), Brown/A

I'm a huge fan of this light, and I both recommend this product and intend to buy it again. I live in an area where it freezes at night from around October through April, even though it gets into the 90s during many of those days, but I am too busy to move dozens of potted plants in and out each day. I have too many plants to put them in windows, so I converted a guinea pig cage into a small, indoor "garden." (This had the added benefit of protecting my plants from the cats!) I looked into full fluorescent fixtures to support my plants during the long indoor months, and couldn't justify the cost of the multi-bulb fixtures, so this bulb in a cheap clamp-light fixture more than fit the bill.I have a few cheap grow-lights (single fluorescent bulbs sold in their own small fixtures from, say, Wal-Mart or True Value) and this bulb all on top of my "plant cage" (about 18"x36") and it's obvious that the plants under this bulb are growing the most intensely. My spider-plant bloomed under this bulb, when it wouldn't bloom outdoors, and even potted miniature roses thrived. Now that it's summer, I've moved most of my plants back outdoors, but this bulb is still getting plenty of use.I have a 50-gallon aquarium, and I'm too cheap to buy enough plants to landscape (aqua-scape?) the whole tank. I bought a few aquatic plants from my local fish store, and currently have them planted in a corner of the tank where this light bulb is placed to shine through the glass. There is noticeable plant growth even from day to day, and I believe that in a month or so, I can spread the plants throughout the tank for a much lower total cost than if I had just bought that many plants to begin with. For those of you that know aquarium plants, you know that Amazon swords and wisteria really require a LOT of light, and that the light intensity decreases as the rays pass through the water. I think the fact that this bulb can encourage plant growth underwater speaks pretty highly of its intensity and quality as a grow-light.Regarding the bulb's lifespan: I have this grow-light on a timer, and it's been on for between 12 and 16 hours a day for nearly 6 full months now. Before I got the timer, it was on 24 hours a day for a week or three. That means I've easily gotten 2,000 hours out of this bulb so far, and it still seems plenty bright, and is still supporting rapid plant growth. If and when this bulb burns out, I'm definitely buying more. It may not be the most glamourous bulb, and the cheap clamp-lights that I use are hardly elegant, but if you want to support your plants without sunlight, this is the bulb to get.

The plants love these lights. The red lights in the pictures are another Amazon product I bought. Red helps with flowering while these bulbs help with foliage. Only complaint I have is that the bulbs usually don't last a year. Consider that I keep them on 12 hours a day though, so a little over 4000 hours life. Prices have come down in the last year as well.

This thing is good for plants. It definitely has a blue tint, and I'd say it is enough that it is less than ideal for normal everyday use. I'd only recommend this for a dedicated plant light. Note that the light will hurt your eyes if it is exposed, so make sure you have shielding or at least some sort of lamp shade around the bulb . Even if you do not look directly at the bulb, if the bulb isn't shielded, it will start hurting your eyes pretty quick since it is so bright. Any normal 5000k led will work for growing plants, but this one has more of a concentration of blue light and will help more with growing leaves and stems of plants (less than idea for flowering stage).

I am pleased with the way this grow light bulb works. It gives off quite a bit of light, but if you are looking for heat for your plants as well, I would recommend a heated grow mat, Amazon carries these as well. This bulb fits into a standard light fixture, I used a clamp on adjustable fixture I had and attached it to a table and it worked well. I used it for my tomatoes and they are very big now, maybe even a little too big. Hopefully it will be warm soon and I can get them into the garden. I would not recommend this grow light bulb. It is now May and I must change my review of this product. I purchased it in February of this year and started using it for my seedlings at the end of March. It is now May and the light bulb has blown out and is no longer any good. I had to drop my rating down to a 1 because this bulb with either defective or it sure had a very short life time. Quite a bit to pay for a little over a month's use of the bulb.

Works well so far, gives off far more light than I expected.

This bulb keeps my mini-greenhouse warm, and I was able to grow little sprouts from seeds in 2 weeks. I'm on my 3rd week now, and I have a few more sprouts growing.My greenhouse is located in the basement, in the dark. The only source of light for my seeds are from this bulb(s).I bought 2 for my mini-greenhouse with the intent that I can put 1 bulb for every 2 shelves. It works, would highly recommend.

Works perfectly for my purposes. 6-12 inches above indoor succulents and keeping them with enough light to have their sun stressed colour.

Just a heads up, these are so much brighter than I expected. But the plants love them and they really brighten up the room. Also good for when Gondor calls for aid

After a week plants are noticeably greener and look healthy and happy. Will definitely repurchase and planning on adding some more.