Hey hey.... Thanks so much for this post..

My question is about lights.

I am building a PVC shelving unit greenhouse. 2 shelves, 4 foot wide by 20 inches deep. I bought 2 sets of lights off Amazon. Here are links to them.

These are 6 - 24 inch lights and are 5000K and 2000Lm per light.

These are 8 - 24 inch lights and are 2819K and 1632Lm per light.

1.) Will they work?

2.) I know you can add the lumens total together to get that where it needs to be. Does kelvin work the same way?

I haven't opened them yet.

Also, I was going to put this in my office. It's almost always 70+ degrees. I was going to build it as a little greenhouse. The walls around it would be foam board wrapped in with mylar sheets. Is that a good idea or will it do more harm than good?

Thanks to anyone that will lend advice!