T5 Grow Lights For Indoor Plants, 2Ft 40W (4 X 10W) Magnetic Installation, Full Spectrum Light Strip With Individual Switch, Lamp Black Cover, Plug And Play, Yellow, 4 Packs

Excellent lights! Easy to install and good value for the price. My plants love them! Also, they don't get hot like the first set I bought. Stay cool after running for 12+ hrs.

Works great love the magnets and definitely see a difference in my plants

These lights are BRIGHT! Like, really bright. I just set them up for my seed-starting tray, and getting them ready was super simple. The included cords, different mounting accessories, and connectors gave me a few options to arrange them. These are full-spectrum LEDs and seem evenly distributed and should give seedlings a similar start to starting in daylight. I haven’t seen how well the seeds actually sprout yet, but based on how solid the light coverage is and how bright the light is, I expect they’ll do just fine. So far it’s looking great! As always, I recommend placing lights as close down to your seedlings as possible for getting them started. I made a little adjustable rig to raise and lower the lights on my wire shelf to make this easier. The lights being very lightweight means the adjustment process will be a warm spring breeze.

I purchased three sets of these lights to create a four-level seed-starting setup, and overall, I’m quite pleased with their performance. One of the most impressive aspects is the accuracy of the PAR values—after testing with a highly reliable and calibrated PAR meter, I found the manufacturer's claims to be spot on at the specified 7.78” height. Since I’m growing vegetable and herb seedlings, I aimed for a PAR range of 150-300. This required some adjustments in light spacing and height to achieve optimal results. Below are some key findings from my testing: - Two lights spaced 7.87” apart at 7.87” height: Consistent PAR readings around 104. - Two lights at 2.5” height: PAR values reached approximately 233 directly below each light but dropped off sharply in between (around 85 PAR). - Three lights spaced ~4” apart at 2.5” height: More even coverage with PAR values ranging from 280-320. - A single light at 2.5” height: Provided ~229 PAR directly underneath but dropped off significantly (95 PAR at 2.5” away, 19 PAR at 5” away). These results indicate that spacing and the number of lights used will significantly impact the effectiveness of the setup. For a 2-foot by 10-inch growing area, I’d recommend using three lights, spaced about 4” apart and positioned about 3” above the plants to achieve a balanced light distribution. One minor drawback is that I wish an extra connecting wire had been included, which would have made the setup more convenient. However, this is a small issue compared to the overall quality and performance of the lights. If you're setting up a grow station, carefully consider the PAR values and spacing to ensure your seedlings get the optimal light exposure. Be sure to check out the attached diagram for a detailed breakdown of my findings.

These grow lights are excellent and actually work. I bought them from my home built NFT hydroponic system and the seedlings love it, and all my vegetation seems to to like it. The lights are intense enough to cause Swiss chard leaves to curl because it’s too intense for them if it’s too close. So yeah, I know that the plants definitely are getting what they need from these.