Do you need the light for just one pot? If so, you should take a look at the SANSI full-spectrum LED grow lights. It will fit in a standard lightbulb socket. You can use a 15W ($17) or 36W ($25.50) bulb.

I don't know about the one you were looking at but I got a bulb that screws into a regular light socket for $20 a few years ago. The closet product from Amazon I can find now is below. But I also found similar products at Home Depot and Lowes for similar prices. I have one several feet above a bookshelf in a hanging light and it's doing great for my Alocasia and some starts. I might get at least two to make sure the bottom of your tent gets sufficient lighting with them.

SANSI Grow Light Bulb with COC Technology, PPF 27 umol/s LED Full Spectrum, 15W Grow Lamp (200 Watt Equivalent) with Optical Lens for High PPFD, Energy Saving Plant Lights for Seeding and Growing https://www.amazon.com/dp/B07KXBY2YH/ref=cm_sw_r_awdo_KY3RY1Z26HKKRT8PGVXM