Let me ask you something. How often do you poop in the dark? Exactly, you don’t. That’s what the bathroom light switch is for. So there’s no reason you should expect your cat to poop in the dark either. The Litter Robot 2 Bubble Unit offers larger sized cats more room to relieve themselves. And I’m assuming that larger cats hold more poop, so it makes sense.
The unit has a new ‘Skylight/Bubble’ window, so your cat not only has more room, but also a room with a view. A poopy room with a view. And a foul stench.