This is the PPFD map:
I can't figure out what the foot print size is but it really doesn't matter because the light fall off is so rapid, it's not something I would try to use.
At 12", the PPFD is so low that it can barely be used for flowering (600µmols is the absolute minimum) and that's a crime because at 600, you're losing 35%± of your yield and, at these light levels, you're going to get stretchy pants with very few leaves and branches so yield is in the toilet.
At 6", there's a good amount of light in the center but move 3 units off center and you're in late seedling/early veg.
Can you use it? Sure your plants won't die but the usable area for growing is tiny.
If you're in 2' space, get a Vipar XS_1500 Pro. They're $99 and usually have a coupon. It puts out a lot of light, has a very even PPFD map, and is a supported product.
Just checked Amazon - $85 including delivery.
