Ppfd is recommended for flowering. It produces good light that helps them sprout. I also have zucchini that is full of blooms.

It is so bright, but i think my cactus is liking it. It just amazes me how far lighting technology has come. At 6,000 lumens this light puts out about the same as 4-100 watt bulbs.

I also appreciate that it doesn't shine purple like so many plant light brands do.

This is a decent ultra-thin grow light with stepless dimming that can fit on those ikea cubic bookshelves. It has a dimmer switch on the cord and easy to adjust.

Light is very bright, and is dimable down to barely on with the included dimmer in the cord. It is not waterproof, however. Keeping your plants under this is equivalent to keeping them in the dark because it doesn't provide spectrum that plants can us...  Read More

The bare aluminum back helpfully says do not touch when in operation. Put the unit down to inspect. There is perhaps a chance that i received a unit that was defective and shorting out.

Spider farmer lights are top of the line. Lamp is 120v. Roi power is 230v. The lights are quite warm but this is helpful in my un heated garage when temperatures dip, i run the lights 10 hrs a day.

The main thing is to be aware that this company is not what it purports to be. They are very difficult to work with and, without amazon's return policy, they will not refund and they force you to pay for return shipping. Their return communication is ...  Read More

Both of our lights appear to b start to show rusty lookin corrosion underneath the epoxy coating.