I spotted these battery operated nav lights the other day and ordered a set. I haven't opened the box but would be happy to if anyone has any questions about it
https://www.amazon.com/Green-Blob-Outdoors-Navigation-Waterproof/dp/B07WDTJGW6/
https://www.amazon.com/Green-Blob-Outdoors-Navigation-Waterproof/dp/B07WDTJGW6/