Try a CFL like this one.
https://www.amazon.com/Feit-Electric-Lumen-Equivalent-ESL40T/dp/B003175ZRM
They trick you with those little LED bulbs. Not that all LED are bad. Yours is a 30w equivalent, which split up between all the tiny bulbs doesn’t give you the intensity you want. I didn’t see lumens mentioned on yours. But I did see another measurement 120 umol. Which is pretty low. Even if you had the light right on the plant
I used to do a lot of indoor gardening. CFL are so nice. I would always use 2 bulbs with a double ended fixture like this
Then I would cover the top with some type of a hood. Usually a throw away aluminum turkey pan. I’m sure you could find something nicer than that to use, just make sure the bulbs are horizontal. More light comes out the side of bulbs as opposed to the tip.
But anyways that’s my suggestion is more light is needed.