Solacure Flower Power bulb.
32w each, and are 20x more powerful that the best reptile bulb made, which is the Arcadia Desert Dragon 54w
Solacure is geared towards Plants, and Not Animals. Solacure is the ONLY bulb that is strongest from 280nm-305nm.
2 x 32w x 4ft bulbs are good for a 4 x 4 area.
These also have Built In Reflectors. UVA/B is LOST upon reflection, and also takes special/expensive glass to let 280nm go through efficiently.
These can also be run at 80w+ as they are greatly overbuilt, but is not necessary unless running in a greenhouse, and really far away.
Always wear UVA/B Protection, as they will fry your eyes. 4-6 hours is what is needed. Depends on distance from plants. Usually use 2 for each 1000w HID/LED equivalent, and 4 x 4 area