I am not a professional, I just like to buy professional tools to have them for a lifetime since I use them as a hobbyist. The tools come in the L Boxx together, with a charger and 2 batteries, plus 3 drill bits and 8 professional screwdrivers, exactly as described. Both tools were tested under the same conditions and have the same high speed. Starting from low, the drill driver reaches lower speeds than the impact driver, and also the drill driver has 20 torque positions, which I believe is safer for screwing bolts. Both tools have a light that turns on with each trigger press, located at the bottom of the handle, but the light of the drill driver is noticeably stronger, perhaps of a different internal construction. Both have a well-adjusted trigger speed, with the drill driver having one click lower, as I mentioned before. However, the impact driver makes your life easier because with one motion you can insert a screwdriver bit or a drill bit. In the tasks I used them for, they never backed down, on the contrary, sometimes I unintentionally over-tightened the screws with the force they have. Keep in mind that they have a 2-year warranty, which can be extended to 3 years by simply registering your tools on the Bosch website.