Hey folks,
I'm planning to add a few new lighting options to Factorio:

Underwater lighting

Lamps that can be placed on water tiles, a good match for the cargo ships mod.

Bioluminescent lighting

Unpowered, weaker lights that use alien technology, with planned support for Will-o-the-Wisps

I also plan to support other lighting mods such as:
Inlaid Lamps
Larger Lamp

Let me know if you've any suggestions!

Also planning to add a filtered look to the underwater lamps, with inspiration from the underwater pipes mod

May need to add some power poles for overseas energy distribution, or rely on another mod.
Cargo ships' overseas poles currently have no distribution area.