This is my favorite grow light. Seedlings and sprouts seem to gravitate toward it. They thrive in the glow of these lights!

Great for lighting up a large plant. It is on for 10 hours a day. I'm very happy about the new leaf growth at the top. This lightbulb works!

I read that some bulbs received were knockoffs. The product listing says they have a 1 year warrantee, however, no direction on how to contact anyone to go through the warrantee process.