Seems like you need more research here, judging from the comments
1. Panasonic LX5 has a good low light performance for its category but nowhere as good as a DSLR and modern mirrorless. So don't think Panasonic = good for low light. Low light performance doesn't even correlate with any single brand.
2. You definitely don't need good low light performance and fast autofocus for indoor product shoots. For best results, you'll always want to shoot at base ISO at f8 or so. A slow AF or even manual focus system also gets the job done well.
3. A bit weird that you don't want to consider Sony (without stating a reason), considering it's one of the leading brands right now.
4. What sort of indoor products are we talking here? If it's tiny (e.g. jewellery) then a macro lens (even manual) would be essential.
5. Just get the cheapest DSLR you can find. Honestly, a D3200 is perfectly capable for this sort of work.