They perfectly clamp to every surface i've tried them on. They are very sturdy and clip on yo almost anything. Flexible and can be clipped anywhere. Clamp very strong and keeps light firm.

The timer is an awesome feature, it has 3 settings 3,6 and 9 hours. The only drawback is that the feature * are confusing. Output of heat from the lights is monitored to prevent and burning to your plants.

They also appear to be providing ample additional light to some smaller potted plants high up on a bakers rack as well. This light give great light to my plants and they are growing and blooming. Month of use at 12 hrs per day.

The timer works great and the plants are germinating like crazy. Hope it works to perk up some of my plants! Use for many different kinds of plants. There was nothing deceptive at all in the description.

Even on the brightest adjustment, the light is not enough. It's mid-winter, with no direct sunlight in my windows, so i was hoping to imitate the sun. However this product generates loud radio frequency interference (rfi) noise spikes every 40 khz.

The light is very bright and cool white. My christmas cactus looks healthy after a few uses. I grow collectors edition hybrid african violets and they all have their own personalities and light preferences. Hopefully this has enough lumens to stop my ...  Read More

Comes folded in a box and a booklet inside. The clamp is fairly sturdy. I have mine attached to a round piece on an inexpensive plant stand and it's staying in place without slipping. Just the right size for a couple indoor plants for cloudy winter mo...  Read More

The timer function is accurate and convenient. The clip is strong, timer works well and it seems to be built well for the price range. Timer is perfect, and it's very easy to move around and use.

It’s great but not a miracle for plants! Also great. Works good for the money.