That can be a difficult question as few lamp or light sellers give you the correct information. That would be PAR. Photosynthetic Available Radiation.
Here is my greens setup. https://i.ibb.co/PZ4XQkH/led-kratky.jpg
I started with three LED Shop Light fixtures. Those worked fine while they lasted.
The next iteration uses six of what were the cheapest LED Shop Lights I could order from Amazon.com At the time, they were $30. for six. Today they are listed as $39.99.
Do you mind telling which ones you bought and how many I would need (~2 x 1.5ft area).
this is my first time growing and I'm trying to grow lettuce using the kratky method. I have everything planned out just need to figure out the lighting.
I was planning on getting these.
Thanks
For when you do start buying equipment, I recommend checking lights out on Amazon before going to a hardware store or somewhere like that. I started with these lights and haven't had any issues with them so far. You could get a cheap $30-50 rack from Home Depot (i wouldn't use Amazon for racks unless you're confident on the brand/seller - they were all too expensive or sketchy for me lol) and either run three lights on two shelves or two lights on three shelves. Its crazy how fast you can scale upward!
Good luck with your future grows!
https://www.amazon.com/dp/B07XQDP5X9/ref=cm_sw_r_cp_apa_i_q1WMFbTYH7FXV?_encoding=UTF8&psc=1
I'm using these right now and they work great for the price.
