Unfortunately with lasers and laser accessories price usually dictates quality :/ and drivers are the bread to the proverbial peanut butter and jelly sandwich that is laser construction. Without the bread, the sandwich is messy and doesn't exactly work right. Much like the driver is needed or else the laser is messy and doesn't work right.
Going even further, shitty bread is never good for a quality sandwich. A shitty driver is not good for a quality laser.