Solar LED Floodlight / Solar Powerbank
If you're going camping or need light somewhere outside the range of the electricity grid, this may be your best friend. I've looked at quite a few of these solar light/power banks, but this one has the brightest light so far. It is also one of the lightest.
This product focuses on providing light for different scenarios. The power bank feature, that is the ability to charge devices via it's USB port, is a perk/gimmick really. The main focus is the light. If you're out and about, it may come in handy though if you run out of juice on your phone for instance.
Talking of which, I wonder when they are going to start making phone and tablet cases that have solar panels on them. There is a product I'm looking at now that's just a solar panel with a usb port. It delivers 2W of power which will take a while to charge a modern phone to 100%, but it could get out out of a pickle. It's only one step to convert this product to a phone case. The idea is not to charge your phone from zero, but to keep it topped up throughout the day, extending the battery life such that you may not need to charge it often. I'm surprised these aren't a thing yet. Maybe they are and I just haven't noticed them.
Peace & Love,
Adé