If it’s the sp250
This is the bottom of the driver. The only time you’d want to do this is if you’re having heat issues. I had to adjust the light intensity to 75% on the TS2000 as it raised my tents temps 10 degrees
The sp250 is a great light that’ll take you seed to smoke. Since the sp series puts off virtually no heat or little heat I doubt you’ll ever need to adjust it.
By default they’re sent out at 100% power. The TSW-2000 has two drivers and two adjustable holes (one on each).
I found you’ll need a tiny screw driver (Phillips) and the rubber plugs are meant to keep the moisture out of the driver. They’re really snug