Very interesting concept, especially for blackouts where I need light in enclosed places like bathrooms, and high-traffic areas like hallways and I don't want to leave fuel/flame lanterns burning.

Here in the States, Sportsman's Guide has a couple of variations. They're not solar, and I'm not sure if they will work on rechargable batteries but they're intriguing nonetheless.

Here is the link for convenience: LED Lanterns at Sportsman's Guide

~Sarah