They're in different weight divisions.
RRT-1 is smaller, lighter and runs on 1x18650 while the catapult is bigger, heavier and runs on 2x18650 resulting in higher overall output and runtime.
In terms of throw, they're both roughly the same, although the spot at a distance that you see with a Catapult is likely to be noticeably bigger than the spot produced at a distance.
The catapult is like a long range search light while the RRT-1 is a light with more of a "tactical" purpose (e.g. to light up a specific subject)