I did a little home work earlier today and seen that maybe they can also be used for 'growing' lights. I saved some research I found and will study a wee bit more. :)
The LED kit used comes with a dimmer switch and works quite well. Here's a link to the LED light kit I bought. This panel still works great and gets used often. amzn.to/2RDCfA7 Thanks!
The light is plenty bright enough for fill lighting in my workshop or as a mild work light. It's not crazy bright, but a nice amount. If it's not bright enough, you'd just add more LEDs. Hope this helps!
