A studio lighting kit is a mix of fragile glass bulbs, folding softboxes, and a tangle of cables, and the move mostly comes down to letting hot lights cool and keeping each cable with the fixture it belongs to. Nothing here is heavy, but a lot of it is breakable.
Pro tip: A cheap cable label maker or just masking tape and a marker on each cord saves real time on setup day; every studio light cable looks identical once coiled.
Watch out: Never pack a strobe or continuous light while it is still hot; residual heat can warp nearby plastic parts or, in rare cases, pose a fire risk in an enclosed case.